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15.86+c=23.00
We move all terms to the left:
15.86+c-(23.00)=0
We add all the numbers together, and all the variables
c+15.86-23=0
We add all the numbers together, and all the variables
c-7.14=0
We move all terms containing c to the left, all other terms to the right
c=7.14
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