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75+255c=1.605
We move all terms to the left:
75+255c-(1.605)=0
We add all the numbers together, and all the variables
255c+73.395=0
We move all terms containing c to the left, all other terms to the right
255c=-73.395
c=-73.395/255
c=-52.612903225807/182.79569892473
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