Question

помогите пожалуйста ​

Answer 1

$a)0.5 \times \frac{4 + 2x}{13} = x - 10 \\ \frac{4 + 2x}{26} = x - 10 \\ 4 + 2x = 26(x - 10) \\ 4 + 2x = 26x - 260 \\ 24x = 264 \\ x = \frac{264}{24} \\ x = 11$

$b) \frac{1 - y}{7} + y = \frac{y}{2} +3 \\ 2(1 - y) + 14y = 7y + 42 \\ 2- 2y + 14y - 7y = 42 \\ 5y = 42 - 2 \\ y = \frac{40}{5} \\ y = 8$