Question

решите уравнение х/4+х/28=2

Answer 1

$\frac{x}{4} + \frac{x}{28} = 2 \\ \frac{7x}{28} + \frac{x}{28} = 2 \\ \frac{8x}{28} = 2 \\ 8x = 56 \\ 8x = 56 \\ x = 7$