Question

пжжжжж решения пжжжжжжж​

Answer 1

Ответ:

$5x + 4 = 2x - 10 \\ 5x + 4 + 2x = - 10 \\ 7x + 4 = - 10 \\ 7x = - 10 - 4 \\ 7x = - 14 \\ x = \frac{ - 14}{7} \\ x = - 2$

$- 2y = 4y + 24 \\ - 2y - 4y = 24 \\ - 6y = 24 \\ y = \frac{24}{ - 6} \\ y = - 4$

$- y + 25 = 12 y - 1 \\ - y + 25 - 12y = - 1 \\ - y - 12y = - 1 - 25 \\ - 13y = - 26 \\ y = \frac{ - 26}{ - 13} \\ y = 2$

$4 - 2y = 24 \\ - 2y = 24 - 4 \\ - 2y = 20 \\ y = \frac{20}{ - 2} \\ y = - 10$