Question

-4z-200/12=-19 помогите решить

Answer 1

$- 4z - \frac{200}{12} = - 19$

$- 4 z- 16 \frac{8}{12} = - 19 \\ - 4z - 16 \frac{2}{3} = - 19 \\ - 4z = - 19 + 16 \frac{2}{3} \\ - 4z = - 2 \frac{1}{3} \\ z = - \frac{7}{3} \div (- 4)$

$z = \frac{7}{3} \times \frac{1}{4}$

$z = \frac{7}{12}$

Ответ: $z = \frac{7}{12}$