Question

Решите пж 1целая5/9x-7/4x=14

Answer 1

$1 \frac{5}{9} x - \frac{7}{4} x = 14 \\ \frac{1 \times 9 + 5}{9} x - \frac{7}{4} x = 14 \\ \frac{14}{9} x - \frac{7}{4} x = 14 \\ 56x - 63x = 504 \\ - 7x = 504 \\ x = 504 \div ( - 7) \\ x = - 72$