Question

помогите решить примеры

Answer 1

$1) frac{5x times 4 - 3 times (2 - 3x)}{12} = \ frac{20x - 6 + 9x}{12} = frac{29x - 6}{12}$
$2)3(m + 4) - 2(4m + 1) = 0 \ 3m + 12 - 8m - 2 = 0 \ - 5m + 10 = 0 \ - 5m = 0 - 10 = - 10 \ m = - 10 div$
$m = - 10 div ( - 5) = 2$
$3)m - 1 + 2(1 - 2m) = 0 \ m - 1 + 2 - 4m = 0 \ - 3m + 1 = 0 \3 m = 0 - 1 = - 1 \ m = - 1 div ( - 3) = frac{?}{?}$
$m = - 1 div 3 = - frac{1}{3}$