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12.75=5c+6
We move all terms to the left:
12.75-(5c+6)=0
We get rid of parentheses
-5c-6+12.75=0
We add all the numbers together, and all the variables
-5c+6.75=0
We move all terms containing c to the left, all other terms to the right
-5c=-6.75
c=-6.75/-5
c=1+1/2.85714285714
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