M+n+ex=2m-x find x pls help me

x =

Step-by-step explanation:

m + n + ex = 2m - x ( add x to both sides )

m + n + ex + x = 2m ( subtract m + n from both sides )

ex + x = 2m - m - n = m - n ( factor out x from each term on the left side )

x(e + 1) = m - n ← divide both sides by (e + 1)

x =

The answer is in the image 

SI=(P*R*T)/100

P=2000

R=1.5

T=6

SI=(2000*1.5*6)/100

=(2000*9)/100

=180

Neil will earn interest of 180

The answer is in the image 

For every 8 cars there are 7 trucks

Therefore,

Cars:Truck=8:7

Answer is B)8:7

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

    =4300/3.3

    =1303.03kg

The solution is given in the image below

The answer is in the image 

The answer is in the image 

30% of 420 are first year students

first year students = (30/100 )*420

=126 students

Student who are not in first year = 420-126

=294 students