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2.5k-11.88=6.8k+2.74
We move all terms to the left:
2.5k-11.88-(6.8k+2.74)=0
We get rid of parentheses
2.5k-6.8k-2.74-11.88=0
We add all the numbers together, and all the variables
-4.3k-14.62=0
We move all terms containing k to the left, all other terms to the right
-4.3k=14.62
k=14.62/-4.3
k=-3+1/2.5
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