Question

Решите уточнение с дробями

39-X=9
12 4

Answer 1

$\frac{39}{12} - \frac{x}{4} = 9 \\ 39 - 3x = 108$

$3x = 39 - 108 = - 69 \\ x = - 69 \div 3 \\ x = - 23$