Question

х/5+х/15+х=-3 4/5 решите уравнение срочно

Answer 1

$frac{x}{5} + frac{x}{15} + x = - 3 frac{4}{5} \ \ frac{x}{5} + frac{x}{15} + x = - frac{12}{5} \ \ 3x + x + 15x = - 36 \ 19x = - 36 div 19 \ x = - frac{36}{19}$