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6(x+9)=7(x-1)
We move all terms to the left:
6(x+9)-(7(x-1))=0
We multiply parentheses
6x-(7(x-1))+54=0
We calculate terms in parentheses: -(7(x-1)), so:We get rid of parentheses
7(x-1)
We multiply parentheses
7x-7
Back to the equation:
-(7x-7)
6x-7x+7+54=0
We add all the numbers together, and all the variables
-1x+61=0
We move all terms containing x to the left, all other terms to the right
-x=-61
x=-61/-1
x=+61
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