Question

найти корень уравнения (1/2х+1/3Х+1/4Х)*6/13=1

Answer 1

$( \frac{1}{2} x + \frac{1}{3} x + \frac{1}{4} x) \times \frac{6}{13} \\ \frac{13}{12} x \times \frac{6}{13} = 1 \\ \frac{1}{12} x \times 6 = 1 \\ \frac{1}{2} x = 1 \\ x = 2$
Ответ: 2.