2 2
X-2x+25=X+8x-70
Ответ
1
х - 2х + 25 = х+ 8х-70
x-2x-x-8x = -25-70
-10x = -95
x = 9.5
x-2x-x-8x = -25-70
-10x = -95
x = 9.5