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8(x-7)=10(x-9)
We move all terms to the left:
8(x-7)-(10(x-9))=0
We multiply parentheses
8x-(10(x-9))-56=0
We calculate terms in parentheses: -(10(x-9)), so:We get rid of parentheses
10(x-9)
We multiply parentheses
10x-90
Back to the equation:
-(10x-90)
8x-10x+90-56=0
We add all the numbers together, and all the variables
-2x+34=0
We move all terms containing x to the left, all other terms to the right
-2x=-34
x=-34/-2
x=+17
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