Question

Решите уравнение х+9/3 - х-1/5 = 2

Answer 1

$displaystyle frac{x+9}{3} - frac{x-1}{5}=2~~~|cdot 15 \ \ 5(x+9)-3(x-1)=30\ \ 5x+45-3x+3=30\ 2x=-18\ \ x=-9$