Question

помогите плиз с уравнениями

Answer 1

Ответ:

$6 - \frac{x}{7} = \frac{x}{8} \\ 6 = \frac{8x + 7x}{56} \\ 6 = \frac{15x}{56} \\ x = \frac{6 \times 56}{15} \\ x = \frac{2 \times 56}{5} \\ x = \frac{112}{5} \\ x = 22.4$

$\frac{6x + 8}{2} + 5 = \frac{5x}{3} \\ 3x + 4 + 5 = \frac{5x}{3} \\ 9x + 27 = 5x \\ 4x = - 27 \\ x = - 6.75$