Question

помогите ............

Answer 1

$x + 19 \times \frac{1}{21} = 22 \times \frac{11}{84}$

$x + 16 \times \frac{4}{84} = 22 \times \frac{11}{84}$

$x = 22 \times \frac{11}{84} - 19 \times \frac{4}{84}$

$x = 3 \times \frac{7}{84}$

$x = 3 \times \frac{1}{12}$