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-k=-(-8k)
We move all terms to the left:
-k-(-(-8k))=0
We add all the numbers together, and all the variables
-1k-(-(-8k))=0
We calculate terms in parentheses: -(-(-8k)), so:We add all the numbers together, and all the variables
-(-8k)
We get rid of parentheses
8k
Back to the equation:
-(8k)
-9k=0
k=0/-9
k=0
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