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81=-1.9c+94.3
We move all terms to the left:
81-(-1.9c+94.3)=0
We get rid of parentheses
1.9c-94.3+81=0
We add all the numbers together, and all the variables
1.9c-13.3=0
We move all terms containing c to the left, all other terms to the right
1.9c=13.3
c=13.3/1.9
c=7+1.7763568394003E-15/1.9
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