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-5+5=0
10+5=15
x=15
x-34= -35
-34+34=0
-35+-34=-1
x=-1
64+2x=46+x
2x-x=x x-x=nic
64-64=0 46-64=-18
x=-18
4x=3x-5
3x-3x=0
4x-3x=x
x=-5
3-x= -2x
-2x+x=-x
-x+x=0
3=-x
4+3x=2+2x
2x-2x=0
3x-2x=x
2-2=0
4-2=2
x=2