Question

Решите уравнение 1) х/1/3-5/6=8/9 ; 4) 3/4+у/5/6-8/9=-9

Answer 1

$\frac{x}{ \frac{1}{3} } - \frac{5}{6} = \frac{8}{9} \\ x \times \frac{3}{1} - = \frac{5}{6} + \frac{8}{9} \\ 3x = \frac{3 \times 5 + 2 \times 8}{18} \\ 3x = \frac{31}{18} \\ x = \frac{31}{18} \times \frac{1}{3} = \frac{31}{54}$