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7(c-14)=-77
We move all terms to the left:
7(c-14)-(-77)=0
We add all the numbers together, and all the variables
7(c-14)+77=0
We multiply parentheses
7c-98+77=0
We add all the numbers together, and all the variables
7c-21=0
We move all terms containing c to the left, all other terms to the right
7c=21
c=21/7
c=3
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