Question

como resolver?
7x+23-x=2x+20

Answer 1

7x+23-x =2x +20
4x= -3
x= -$\frac{3}{4}$

Answer 2

7x + 23 - x = 2x + 20
7x - x - 2x = 20 - 23
4x = - 3
x = - 3 ÷ 4
x = - 0,75  ou - 3/4