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-7+2x=8+2x
We move all terms to the left:
-7+2x-(8+2x)=0
We add all the numbers together, and all the variables
2x-(2x+8)-7=0
We get rid of parentheses
2x-2x-8-7=0
We add all the numbers together, and all the variables
-15!=0
There is no solution for this equation
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