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7x-3=2(7x+5)
We move all terms to the left:
7x-3-(2(7x+5))=0
We calculate terms in parentheses: -(2(7x+5)), so:We get rid of parentheses
2(7x+5)
We multiply parentheses
14x+10
Back to the equation:
-(14x+10)
7x-14x-10-3=0
We add all the numbers together, and all the variables
-7x-13=0
We move all terms containing x to the left, all other terms to the right
-7x=13
x=13/-7
x=-1+6/7
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