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586=9(7x+9)
We move all terms to the left:
586-(9(7x+9))=0
We calculate terms in parentheses: -(9(7x+9)), so:We get rid of parentheses
9(7x+9)
We multiply parentheses
63x+81
Back to the equation:
-(63x+81)
-63x-81+586=0
We add all the numbers together, and all the variables
-63x+505=0
We move all terms containing x to the left, all other terms to the right
-63x=-505
x=-505/-63
x=8+1/63
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