Question

4(2x – 5) = 7 – x

Answer 1

4(2x - 5) = 7 - x ---- distribute through the parenthesis
8x - 20 = 7 - x --- add x to both sides
8x + x - 20 = 7 --- add 20 to both sides
8x + x = 7 + 20 -- combine like terms
9x = 27 -- divide both sides by 9
x = 3

check..
4(2x- 5) = 7 - x
4((2(3) - 5) = 7 - 3
4(6 - 5) = 4
4(1) = 4
4 = 4 (correct)

x = 3