Question

$12x - 7 - 3x = 5x + 2(x + 1 )$
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Answer 1

Olá,

$12x - 7 - 3x = 5x + 2(x + 1 ) \\ 12x - 7 - 3x = 5x + 2x + 2 \\ 12x - 3x - 5x - 2x = 2 + 7 \\ 2x = 9 \\ x = \frac{9}{2}$

Answer 2

Resposta:

$\frac{9}{2}$

Explicação passo-a-passo:

$12x - 7 - 3x = 5x + 2(x + 1) \\ 9x - 7 = 5x + 2x + 2 \\ 9x - 5x - 2x = 7 + 2 \\ 2x = 9 \\ x = \frac{9}{2}$