Question

Решите уравнение: x-1.5(0.8+3x)=-0.7

Answer 1

$x - 1.5(0.8 + 3x) = - 0.7 \\ x - 1.2 - 4.5 x = - 0.7 \\ - 3.5x - 1.2 = - 0.7 \\ - 3.5x = - 0.7 + 1.2 \\ - 3.5x = 0.5 \\ x = - \frac{1}{7}$