21.50
Step-by-step explanation:
43 ÷ (7 − 3) × 2
According to order of operations you would do 7 - 3 first which gets you to 4.
43 ÷ 4 × 2
Now you would do 43 ÷ 4 which is 10.75 so next...
10.75 × 2
You should get an answer of 21.50
Hope this helps :D