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-k=3k-16
We move all terms to the left:
-k-(3k-16)=0
We add all the numbers together, and all the variables
-1k-(3k-16)=0
We get rid of parentheses
-1k-3k+16=0
We add all the numbers together, and all the variables
-4k+16=0
We move all terms containing k to the left, all other terms to the right
-4k=-16
k=-16/-4
k=+4
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