Răspuns :
2x+3x-4x+5=-2 x=7
2(x+3)-4(x+1)=-x+3 2x+6-4x-4=-x=3 2x= -1 x=-1/2
-2x+5x-3x=-2 x+2
4x-5x+3x-2x-6=5
6x+3x+6=7 9x=11 x=9/11
7x+28-x=2x+6 4x= -22 x=11/2
5x-7=-2x+5 7x=12 x=12/7
8x=-5 x=-5/8
-x=17 x=-17
2x=0 x =0
2(x+3)-4(x+1)=-x+3 2x+6-4x-4=-x=3 2x= -1 x=-1/2
-2x+5x-3x=-2 x+2
4x-5x+3x-2x-6=5
6x+3x+6=7 9x=11 x=9/11
7x+28-x=2x+6 4x= -22 x=11/2
5x-7=-2x+5 7x=12 x=12/7
8x=-5 x=-5/8
-x=17 x=-17
2x=0 x =0