108=3k-9(-2+2k)

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Solution for 108=3k-9(-2+2k) equation:



108=3k-9(-2+2k)
We move all terms to the left:
108-(3k-9(-2+2k))=0
We add all the numbers together, and all the variables
-(3k-9(2k-2))+108=0
We calculate terms in parentheses: -(3k-9(2k-2)), so:
3k-9(2k-2)
We multiply parentheses
3k-18k+18
We add all the numbers together, and all the variables
-15k+18
Back to the equation:
-(-15k+18)
We get rid of parentheses
15k-18+108=0
We add all the numbers together, and all the variables
15k+90=0
We move all terms containing k to the left, all other terms to the right
15k=-90
k=-90/15
k=-6

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