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3-8k=-6k+13
We move all terms to the left:
3-8k-(-6k+13)=0
We get rid of parentheses
-8k+6k-13+3=0
We add all the numbers together, and all the variables
-2k-10=0
We move all terms containing k to the left, all other terms to the right
-2k=10
k=10/-2
k=-5
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