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k+7k-k=49+8k
We move all terms to the left:
k+7k-k-(49+8k)=0
We add all the numbers together, and all the variables
k+7k-k-(8k+49)=0
We add all the numbers together, and all the variables
7k-(8k+49)=0
We get rid of parentheses
7k-8k-49=0
We add all the numbers together, and all the variables
-1k-49=0
We move all terms containing k to the left, all other terms to the right
-k=49
k=49/-1
k=-49
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