Question

ДАЮ 50 БАЛОВ
3-2a+5x=4a+9-x СРОЧНО!!!

Answer 1

Ответ:

3-2a+5x=4a+9-x

-2a-4a=9-x-3-5x

-6a=6-6x

a= -1+x

Answer 2

$3 - 2a + 5x = 4a + 9 - x \\ 3 - 2a + 5x - 4a = 9 - x \\ 3 - 6a + 5x = 9 - x \\ - 6a + 5x = 9 - x - 3 \\ - 6a + 5x = 6 - x \\ - 6a = 6 - x - 5x \\ - 6a = 6 - 6x \\ \frac{ - 6a}{ - 6} = \frac{6 - 6x}{ - 6} \\ a = \frac{6 - 6x}{ - 6} \\ a = x - 1$