Question

resolva a equação 7(x-1)-2(x-5)=x-5

Answer 1

$7(x - 1) - 2(x - 5) = x - 5 \\ 7x - 7 - 2x + 10 = x - 5 \\ 7x - 2x - x = - 5 - 10 + 7 \\ 4x = - 8 \\ x = \frac{ - 8}{4} \\ x = - 2$