Question

помогите даю 29баллов​

Answer 1

$\frac{x + 3}{7} = \frac{2x - 1}{5} \\ 5 \times (x + 3) = 7 \times (2x - 1) \\ 5x + 15 = 14x - 7 \\ 5x - 14x = - 7 - 15 \\ - 9x = - 22 \\ x = \frac{22}{9}$