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-k=-8+k
We move all terms to the left:
-k-(-8+k)=0
We add all the numbers together, and all the variables
-k-(k-8)=0
We add all the numbers together, and all the variables
-1k-(k-8)=0
We get rid of parentheses
-1k-k+8=0
We add all the numbers together, and all the variables
-2k+8=0
We move all terms containing k to the left, all other terms to the right
-2k=-8
k=-8/-2
k=+4
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