Question

помогите пожалуйста решить

Answer 1

$\frac{y - 3.5}{8 \frac{5}{6} } = \frac{ \frac{3}{53} }{5} \\ \frac{y - 3.5}{ \frac{53}{6} } = \frac{3}{53 \times 5} \\ \frac{(y - 3.5) \times 6}{53} = \frac{3}{53 \times 5} \\ (y - 3.5) \times 6 \times 53 \times 5 = 53 \times 3 \\ (y - 3.5) \times 6 \times 5 = 3 \\ (y - 3.5) \times 2 \times 5 = 1 \\ 10y - 35 = 1 \\ 10y = 36 \\ y = 3.6$