Question

решите уравнение
$\frac{x}{5} - \frac{x}{2} = -3$

Answer 1

2x-5x=-30
x(2-5)=-30
x=10

Answer 2

$\frac{x}{5} - \frac{x}{2} =-3; \frac{2x}{10} - \frac{5x}{10} =-3; \frac{-3x}{10} =-3; x=10$