Question

Решите уравнение: 1 1/4 (x-2)= -5 (x+1)

Answer 1

$1frac{1}{4}(x-2)=-5(x+1) \ frac{5}{4}x- frac{10}{4}=-5x-5 \ frac{5}{4}x+5x=-5+ frac{10}{4}\ 5x+20x=-20+10 \ 25x=-10 \ 5x=-2 \ x=- frac{2}{5}$