Question

решить уравнение срочно....................

Answer 1

умножаем (2x-5) на 7, а (3х+5) на 3

14х-35=9х+15
5х=50
х=10

Answer 2

$\frac{2x - 5}{3} - \frac{3x + 5}{7} = 0 \\ \frac{14x - 35}{21} - \frac{9x + 15}{21} = 0 \\ \frac{14x - 35 - 9x - 15}{21} = 0 \\ \frac{5x - 50}{21} = 0 \\ 5x - 50 = 0 \\ 5x = 50 \\ x = 10$