Question

Решите уравнение:
(x+12-4)*5/7=x+4

Answer 1

$(x + 8) \times \frac{5}{7} = x + 4 \\ \frac{5}{7} x + \frac{40}{7} = x + 4 \\ - \frac{2}{7} x = - 1 \frac{5}{7} \\ x = \frac{13}{2} \\ x = 6 \frac{1}{2} \\ x = 6.5$