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7x-7=7(x-2)
We move all terms to the left:
7x-7-(7(x-2))=0
We calculate terms in parentheses: -(7(x-2)), so:We get rid of parentheses
7(x-2)
We multiply parentheses
7x-14
Back to the equation:
-(7x-14)
7x-7x+14-7=0
We add all the numbers together, and all the variables
7!=0
There is no solution for this equation
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