Question

Решите уравнение:
$frac{7x - 1}{12} - frac{x + 1}{4} = frac{2x + 5}{3}$
​

Answer 1

$frac{7x - 1}{12} - frac{x + 1}{4} = frac{2x + 5}{3} : : : : | cdot12 \ 7x - 1 - 3(x + 1) = 4(2x + 5) \ 7x - 1 - 3x - 3 = 8x + 20 \ 4x - 4 = 8x + 20 \ 4x - 8x = 20 + 4 \ - 4x = 24 \ x = frac{24}{ - 4} \ boxed{bold{x = - 6}}$

Answer 2

Да