Найду корень уравнения: 2-8(9+2х)=5-х
2 - 8*(9 + 2*x) = 5 - x
2-8*(9+2*x) = 5-x
2-8*9-8*2*x = 5-x
-70 - 16*x = 5-x
x = 75 / (-15)
x1 = -5
x1 = -5.0