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7-2(x-4)+2x=15
We move all terms to the left:
7-2(x-4)+2x-(15)=0
We add all the numbers together, and all the variables
2x-2(x-4)-8=0
We multiply parentheses
2x-2x+8-8=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
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