5х+2=3-4(1-х)
5x+2=3-4+4x
5x-4x=-1-2
x=-3
5x +2 = 3 - 4 +4x
5x -4x=3-4 -2
1x= -3
x= -3
-15 +2= 3 - 4 -12
-13= -13