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-12=3-2k=3k
We move all terms to the left:
-12-(3-2k)=0
We add all the numbers together, and all the variables
-(-2k+3)-12=0
We get rid of parentheses
2k-3-12=0
We add all the numbers together, and all the variables
2k-15=0
We move all terms containing k to the left, all other terms to the right
2k=15
k=15/2
k=7+1/2
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