Mathematics : asked on brie7396

22.05.2022

Solve for x: -3x +10 = 31

0

Step-by-step answer

24.06.2023, solved by verified expert

Chemistry, Q&A Expert

29 464 answers

Unlock the full answer

1 students found this answer

x = -7

Explanation:
-3x * -7 = 21
21 + 10 = 31

It is was helpful?

Helpful Useless

Faq

Mathematics

Solve for x: -3x +10 = 31

Step-by-step answer

P Answered by PhD

1

x = -7

Explanation:
-3x * -7 = 21
21 + 10 = 31

Mathematics

4/5x = -16 solve for x. -3x + 4 = 31 solve for x. 2x + -12 = -22 what is the solution? 25 = 15 – 5r what is the solution to the equation? 12.5 + 5x = -10

Step-by-step answer

P Answered by PhD

Hello!

The answers are:

1 x=-20

2 x=-9

3 x=-5

4 r=-2

5 x=-4.5

Why?

To know the solution of the problems, we need to isolate each variable.

Remember that:

- If we have an equality: if the number is subtracting (negative sign), and if you need to move it to the other side of the equality, its sign changes to positive.

- If we have an equality: if the number is adding (positive sign), and if you need to move it to the other side of the equality, its sign changes to negative.

- If we have an equality: if the number is part of a product , and if you need to move it to the other side of the equality, the same number will be dividing the factors of the side. On the opposite, if the number is dividing, it will be multiplying on the other side of the equality.

So,

1 - Solving for "x"

$\frac{4}{5}x=-16\\x=\frac{-16}{\frac{4}{5} }=-16*\frac{5}{4}=-20\\x=-20$

2 - Solving for "x"

$-3x+4=31\\-3x=31-4=27\\x=\frac{27}{-3}=-9$

3 - Solving for "x"

$2x+(-12)=-22\\2x-12=-22\\2x=-22+12=-10\\\\2x=-10\\x=\frac{-10}{2}=-5$

4 - Finding the solution

$25=15-5r\\25-15=-5r\\-5r=10\\r=\frac{10}{-5}=-2$

5 - Finding the solution

$12.5+5x=-10\\5x=-10-12.5=-22.5\\5x=-22.5\\x=\frac{-22.5}{5}=-4.5$

Have a nice day!

Mathematics

4/5x = -16 solve for x. -3x + 4 = 31 solve for x. 2x + -12 = -22 what is the solution? 25 = 15 – 5r what is the solution to the equation? 12.5 + 5x = -10

Step-by-step answer

P Answered by PhD

Hello!

The answers are:

1 x=-20

2 x=-9

3 x=-5

4 r=-2

5 x=-4.5

Why?

To know the solution of the problems, we need to isolate each variable.

Remember that:

- If we have an equality: if the number is subtracting (negative sign), and if you need to move it to the other side of the equality, its sign changes to positive.

- If we have an equality: if the number is adding (positive sign), and if you need to move it to the other side of the equality, its sign changes to negative.

- If we have an equality: if the number is part of a product , and if you need to move it to the other side of the equality, the same number will be dividing the factors of the side. On the opposite, if the number is dividing, it will be multiplying on the other side of the equality.

So,

1 - Solving for "x"

$\frac{4}{5}x=-16\\x=\frac{-16}{\frac{4}{5} }=-16*\frac{5}{4}=-20\\x=-20$

2 - Solving for "x"

$-3x+4=31\\-3x=31-4=27\\x=\frac{27}{-3}=-9$

3 - Solving for "x"

$2x+(-12)=-22\\2x-12=-22\\2x=-22+12=-10\\\\2x=-10\\x=\frac{-10}{2}=-5$

4 - Finding the solution

$25=15-5r\\25-15=-5r\\-5r=10\\r=\frac{10}{-5}=-2$

5 - Finding the solution

$12.5+5x=-10\\5x=-10-12.5=-22.5\\5x=-22.5\\x=\frac{-22.5}{5}=-4.5$

Have a nice day!

Mathematics

Pl help Question 1 (1 point) Saved What is the solution to the following equation? 4x + 15 = 31 Question 1 options: x = 11.5 x = 4 x = 12 x = -7.25 Question 2 (1 point) Saved What is the solution set for the inequality? -3x + 10 -5 Question 2 options: x -5 x -5 x 5 x 5 Question 3 (1 point) What is the solution to the model below? Question 3 options: x = 7 x = 2 x = 3 x = 1 Question 4 (1 point) Solve the inequality. -2x - 1 ≥ 9 Question 4 options: x ≤ 5 x ≥ -5 x ≤ -5 x ≥ 5 Question 5 (1 point) Solve for x. -0.5x + 3.55 = -4.5 Question 5 options:

Step-by-step answer

P Answered by Specialist

4

1) x=4

2) x<5

3) x=3

4) x ≤ -5

5) x=16.1

Step-by-step explanation:

Mathematics

Solve for x. 1. -3x + 4 = 31 solve for x. 2. 2x + -10 = 22 what is the solution? 3. 40 = 32 – 4r

Step-by-step answer

P Answered by PhD

1

1)-9

2)16

3)-2

Step-by-step explanation:

1)

-3x + 4 = 31

-3x = 31 - 4

-3x = 27

-x = 27/3

-x = 9

x = -9

2)

2x + -10 = 22

2x = 22 + 10

2x = 32

x = 32/2

x = 16

3)

40 = 32 – 4r

-4r = 40 - 32

-4r = 8

-r = 8/4

-r = 2

r = -2

Mathematics

Which expression is equivalent to (5x2 + 2x + 1) + (6x2 − 3x + 9) -a. -3x2 + 11x − 3 b. 11x2 − x + 10 c. 4x2 + 27x − 28 d. -3x2 + 11x + 31

Step-by-step answer

P Answered by PhD

2

B. 11x^2 − x + 10

Step-by-step explanation:

(5x^2 + 2x + 1) + (6x^2 − 3x + 9)

I like to line them up vertically

(5x^2 + 2x + 1)

+ (6x^2 − 3x + 9)

11 x^2 - x + 10

Mathematics

Which expression is equivalent to (5x2 + 2x + 1) + (6x2 − 3x + 9) -a. -3x2 + 11x − 3 b. 11x2 − x + 10 c. 4x2 + 27x − 28 d. -3x2 + 11x + 31

Step-by-step answer

P Answered by PhD

2

B. 11x^2 − x + 10

Step-by-step explanation:

(5x^2 + 2x + 1) + (6x^2 − 3x + 9)

I like to line them up vertically

(5x^2 + 2x + 1)

+ (6x^2 − 3x + 9)

11 x^2 - x + 10

StudenGPT

-Sc Q 31 T Which system of inequalities is represented by the graph? Fock O Terms Use IOI O Q A T O Z y≥ 3x+6 y -x-6 y x y≤ 3x+6 y - x-6 y x O y≤ x+6 y -3x - 6 y x 12 y≥ ²x+6 y -3x - 6 y x 2 com W S # 3 x alt E D $ V C R % F L.P 5 T V G B & 7 H -10 -8 -6 -4 18 204 U 8 00 J N 19 -- -6 -8 -10 10 M 8 6 2 --4- 4 110 K insert 2 V O 4 6 alt a 8 V .. 10 E

Step-by-step answer

P Answered by Studen AI

1

The system of inequalities represented by the graph is:

y ≥ 3x + 6 (represented by the line passing through the points (0, 6) and (-2, 0) with shaded region above the line)

y < -x - 6 (represented by the line passing through the points (0, -6) and (-6, 0) with shaded region below the line)

So, the correct answer is:

y ≥ 3x + 6 (Option D)

StudenGPT

-Sc Q 31 T Which system of inequalities is represented by the graph? Fock O Terms Use IOI O Q A T O Z y≥ 3x+6 y -x-6 y x y≤ 3x+6 y - x-6 y x O y≤ x+6 y -3x - 6 y x 12 y≥ ²x+6 y -3x - 6 y x 2 com W S # 3 x alt E D $ V C R % F L.P 5 T V G B & 7 H -10 -8 -6 -4 18 204 U 8 00 J N 19 -- -6 -8 -10 10 M 8 6 2 --4- 4 110 K insert 2 V O 4 6 alt a 8 V .. 10 E

Step-by-step answer

P Answered by Studen AI

The system of inequalities represented by the graph is:

y ≥ 3x + 6 (represented by the line passing through the points (0, 6) and (-2, 0) with shaded region above the line)

y < -x - 6 (represented by the line passing through the points (0, -6) and (-6, 0) with shaded region below the line)

So, the correct answer is:

y ≥ 3x + 6 (Option D)

Mathematics

Need answers as soon as possible, will give brainiest and rate 5/5. 1: solve x/-3 = -15. 45 -45 5 -5 2: find the value of -7 + 3(-12) ÷ (-3). -16 -19 -40 5 3: if f(n) = n^2 - n, then f(-4) is -20 20 12 -12 4: which equation does not have the same solution as the others? x/4 = 2 x - 9 = 17 x + 12 = 20 2x = 16 5: the solution to 2x - 5 = 27 is also a solution of which of the following equations? 3 + 5x = 58 3x - 2 = 31 2x + 3 = 35 27 - 2x = 5 6: find the value of -8 - 12 - (-20). 24 -40 16 0 7: evaluate -2x ^2y, if x = -3 and y = -1. -12 -18 18 12

Step-by-step answer

P Answered by Master

54

1. x/-3=-15
x=45

2. -7+3(-12)÷-3
-7+12
5

3. f(-4)=(-4)²-(-4)
f(-4)=16-(-4)
f(-4)=20

4. x-9=17

5. 2x+3=35

6. -8-12-(-20)
-20-(-20)
0

7. -2(-3)²(-1)
-2(9)(-1)
-18(-1)
18

8. x-(-2)

9. subtract 7 then divide by -2

10. 6+(-18)+(-13)+9
-12-4
-16

11. 5x=11

12. division property

13. -3³ = -27

14. x/2-3=7
x/2=10
x=20

15. 2x-5=15

16. x/-4-(-8)=12
x/-4=4
x=-16

17. 168

18. 16-20-(-8)-9
-4-(-8)-9
4-9
-5

free Ask question

Today we have helped

2 295 students

just now

Physics

Agustin visits Panama City, Florida, during the month of May. He feels a shore breeze blowing from theocean onto the beach. What causes this shore breeze? SC.6.E.7.5 A.The ocean is colder than the land.

B.The land is colder than the ocean.

C.The ocean is denser than the land.

D.The land is denser than the ocean.

p Answered by PhD

1 minute ago

Mathematics

What is the midpoint of the segment with endpoints (5,2) and (4,1)?

m Answered by Master

1 minute ago

Business

Stockton Company Adjusted Trial Balance December 31 Cash 6,102 Accounts Receivable 2,938 Prepaid Expenses 703 Equipment 15,970 Accumulated Depreciation 6,337 Accounts Payable 1,719 Notes Payable 4,543 Common Stock 1,000 Retained Earnings 10,872 Dividends 916 Fees Earned 6,176 Wages Expense 2,514 Rent Expense 761 Utilities Expense 459 Depreciation Expense 233 Miscellaneous Expense 51 Totals 30,647 30,647 Determine the retained earnings ending balance.

p Answered by PhD

2 minutes ago

Mathematics

Rewrite the rational function g(x) =x-9/x in the form g(x) = c+ r/x, where c and r are constants.

p Answered by PhD

2 minutes ago

Physics

You are driving up a long, inclined road. After 1.50mi you notice that signs along the roadside indicate that your elevation has increased by 510ft . b) How far do you have to drive to gain an additional 110ft of elevation

p Answered by PhD

Get help with homework

What is Studen

Studen helps you with homework in two ways:

Our base includes complete solutions from various experts

chat

Leave a question

Studen will automatically choose an expert for you.

directly

We have more than 5 000 verified experienced expert