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5x+3=7(x-7)
We move all terms to the left:
5x+3-(7(x-7))=0
We calculate terms in parentheses: -(7(x-7)), so:We get rid of parentheses
7(x-7)
We multiply parentheses
7x-49
Back to the equation:
-(7x-49)
5x-7x+49+3=0
We add all the numbers together, and all the variables
-2x+52=0
We move all terms containing x to the left, all other terms to the right
-2x=-52
x=-52/-2
x=+26
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