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-3.7=k+2.5
We move all terms to the left:
-3.7-(k+2.5)=0
We get rid of parentheses
-k-2.5-3.7=0
We add all the numbers together, and all the variables
-1k-6.2=0
We move all terms containing k to the left, all other terms to the right
-k=6.2
k=6.2/-1
k=-6+0.2/1
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