Question

Решить уравнение. Срочно пж
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Answer 1

Ответ:

$\frac{0.2}{x + 3} = \frac{0.4}{x - 5} \\ 0.2(x - 5) = 0.4(x + 3) \\ 0.2x - 1 = 0.4x + 1.2 \\ 0.2x - 0.4x = 1 + 1.2 \\ - 0.2x = 2.2 \\ x = - 11$