Verified answer

Resposta:

2x - 3 = 7(x-4)

2x - 3 = 7x - 28

2x = 7x - 25

0 = 5x - 25

25 = 5x

x = 5

Explicação passo-a-passo:

2x - 3 = 7 . ( x -4)

2x - 3 = 7x - 28

2x - 7x = -28 +3

- 5x = - 25

x = - 25/-5

x = +5