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30=55(x-9)
We move all terms to the left:
30-(55(x-9))=0
We calculate terms in parentheses: -(55(x-9)), so:We get rid of parentheses
55(x-9)
We multiply parentheses
55x-495
Back to the equation:
-(55x-495)
-55x+495+30=0
We add all the numbers together, and all the variables
-55x+525=0
We move all terms containing x to the left, all other terms to the right
-55x=-525
x=-525/-55
x=9+6/11
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