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3x+7-5x=12-15x+13x-5
We move all terms to the left:
3x+7-5x-(12-15x+13x-5)=0
We add all the numbers together, and all the variables
3x-5x-(-2x+7)+7=0
We add all the numbers together, and all the variables
-2x-(-2x+7)+7=0
We get rid of parentheses
-2x+2x-7+7=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
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