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2c+3.4=16.8
We move all terms to the left:
2c+3.4-(16.8)=0
We add all the numbers together, and all the variables
2c-13.4=0
We move all terms containing c to the left, all other terms to the right
2c=13.4
c=13.4/2
c=6+1/1.4285714285714
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