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1. 6x-24-2=6x-26
2. 2x+2-3x+3=-x+5
3. -3y+6+4y+8=y+14
4.5x-5y-5-4x-8=x-5y-13
5. 6a+2b-2a-2b=4a
6. 2x-2-2x=-2
7.x²-x-3x²-3x=-2x²-4x
8. 5a²-15-3a²-15a=2a²-15a-15
9.3x²+0,99xy-xy+y=3x²+y+0,01