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1.89c=28.35
We move all terms to the left:
1.89c-(28.35)=0
We add all the numbers together, and all the variables
1.89c-28.35=0
We move all terms containing c to the left, all other terms to the right
1.89c=28.35
c=28.35/1.89
c=15+3.5527136788005E-15/1.89
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