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-7x-14+4=-3x
-7x+3x=10
-4x=10
x=-2,5
x-1/4-x+1/2=-x/4
-1/4+1/2=-x/4
x/4=-1/4
x=-1
-4(1/2x-2)-4=2(-x+2)
-2x+8-4=-2x+4
-2x+2x=4-4
0=0
-1/4+2/4= -x/4
1/4= -x/4 /*(-4)
x= -1
-7(x+2)+4=3x
-7x-14+4=3x
-10x=10
x= -1
-4(1/2x-2)-4=2(-x+2)
-2x+8-4= -2x+4 /+2x-4
0=0
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