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7x-49=7(x-7)
We move all terms to the left:
7x-49-(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)
7x-7x+49-49=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
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