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7(5x+9)=5(10x+7)
We move all terms to the left:
7(5x+9)-(5(10x+7))=0
We multiply parentheses
35x-(5(10x+7))+63=0
We calculate terms in parentheses: -(5(10x+7)), so:We get rid of parentheses
5(10x+7)
We multiply parentheses
50x+35
Back to the equation:
-(50x+35)
35x-50x-35+63=0
We add all the numbers together, and all the variables
-15x+28=0
We move all terms containing x to the left, all other terms to the right
-15x=-28
x=-28/-15
x=1+13/15
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