Question

(4x-2)-(x+2)=20
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4 2 4

Answer 1

Resposta:

$\frac{4x - 2}{4} - \frac{x + 2}{2} = \frac{20}{4} \\ \frac{4x - 2 - 2x + 4 = 20}{4} \\ 4x - 2 - 2x + 4 = 20 \\ 2x = 20 + 2 - 4 \\ 2x = 18 \\ x = \frac{18}{2} \\ x = 9$