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-5x+2x=-8-10
-3x=-18 /:(-3)
x=6
7x+14=5x-22
7x-5x=-22-14
2x=-36 /:2
x=-18
-3+2x-6=3-4x
2x+4x=3+9
6x=12
x=2
-5x+12+x=2x-12
-4x-2x=-12-12
-6x=-24
x=4
4-2x-(x+3)=x-5-3-x
4-2x-x-3=-8
-3x=-8-1
-3x=-9
x=3
4-x-(2x+3)+(x-4)=-(2x-3)-(x+7)
4-x-2x-3+x-4=-2x+3-x-7
-2x+3x=-4+3
x=-1
3(x-4)-2(2x-5)=-4
3x-12-4x+20=-4
-x=-4-8
-x=-12
x=12