-129(x-12)=-9(1+7x)

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Solution for -129(x-12)=-9(1+7x) equation:



-129(x-12)=-9(1+7x)
We move all terms to the left:
-129(x-12)-(-9(1+7x))=0
We add all the numbers together, and all the variables
-129(x-12)-(-9(7x+1))=0
We multiply parentheses
-129x-(-9(7x+1))+1548=0
We calculate terms in parentheses: -(-9(7x+1)), so:
-9(7x+1)
We multiply parentheses
-63x-9
Back to the equation:
-(-63x-9)
We get rid of parentheses
-129x+63x+9+1548=0
We add all the numbers together, and all the variables
-66x+1557=0
We move all terms containing x to the left, all other terms to the right
-66x=-1557
x=-1557/-66
x=23+13/22

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