9(11+-1k)=3(3k+-3)

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Solution for 9(11+-1k)=3(3k+-3) equation:



9(11+-1k)=3(3k+-3)
We move all terms to the left:
9(11+-1k)-(3(3k+-3))=0
We add all the numbers together, and all the variables
9(-1k)-(3(3k-3))=0
We multiply parentheses
-9k-(3(3k-3))=0
We calculate terms in parentheses: -(3(3k-3)), so:
3(3k-3)
We multiply parentheses
9k-9
Back to the equation:
-(9k-9)
We get rid of parentheses
-9k-9k+9=0
We add all the numbers together, and all the variables
-18k+9=0
We move all terms containing k to the left, all other terms to the right
-18k=-9
k=-9/-18
k=1/2

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