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-5c+6.2=18.8
We move all terms to the left:
-5c+6.2-(18.8)=0
We add all the numbers together, and all the variables
-5c-12.6=0
We move all terms containing c to the left, all other terms to the right
-5c=12.6
c=12.6/-5
c=-2+2.6/5
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