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8x+9-2x+6=6x+15
We move all terms to the left:
8x+9-2x+6-(6x+15)=0
We add all the numbers together, and all the variables
6x-(6x+15)+15=0
We get rid of parentheses
6x-6x-15+15=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
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