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-4k-65=3(2k+5)
We move all terms to the left:
-4k-65-(3(2k+5))=0
We calculate terms in parentheses: -(3(2k+5)), so:We get rid of parentheses
3(2k+5)
We multiply parentheses
6k+15
Back to the equation:
-(6k+15)
-4k-6k-15-65=0
We add all the numbers together, and all the variables
-10k-80=0
We move all terms containing k to the left, all other terms to the right
-10k=80
k=80/-10
k=-8
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