Question

Найдите корень уравнения - 3 x + 1 - 3 (x + 3) = -2 (1 - x) + 2

Answer 1

-3х+1-3(х+3)=-2(1-х)+2
-3х+1-3х-9=-2+2х+2
-3х-3х-2х=-2+2-1+9
-8х=8
х=-8:8
х=-1
-3*(-1)+1-3*((-1)+3)=-2*(1-(-1))+2
3+1+3-9=-2-2+2
-2=-2