Question

Sorry if the problem turned out bad, I had to use a scanner.

Answer 1

This is how you would solve for x;

4x - 10 =18
4x -10 + 10 = 18 + 10 ( add 10 on both sides)
4x = 28 
x = 28 ÷ 4 
x = 7

So your correct choice would be; C.7

Answer 2

X is 7.

4(7) - 10 = 18

4 x 7 - 10 = 18