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19c+169c=16c-20
We move all terms to the left:
19c+169c-(16c-20)=0
We add all the numbers together, and all the variables
188c-(16c-20)=0
We get rid of parentheses
188c-16c+20=0
We add all the numbers together, and all the variables
172c+20=0
We move all terms containing c to the left, all other terms to the right
172c=-20
c=-20/172
c=-5/43
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