Question

Пж, Решите уравнение с решением​

Answer 1

$\frac{0.2}{x + 3} = \frac{0.7}{x - 2} \\ 0.2 \times (x - 2) = 0.7 \times (x + 3) \\ 0.2x - 0.4 = 0.7x + 2.1 \\ 0.2x - 0.7x = 2.1 + 0.4 \\ - 0.5x =2.5 \\ \boldsymbol{x = - 5}$