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-2(k-6)=7
We move all terms to the left:
-2(k-6)-(7)=0
We multiply parentheses
-2k+12-7=0
We add all the numbers together, and all the variables
-2k+5=0
We move all terms containing k to the left, all other terms to the right
-2k=-5
k=-5/-2
k=2+1/2
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