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9(c+85)=-72
We move all terms to the left:
9(c+85)-(-72)=0
We add all the numbers together, and all the variables
9(c+85)+72=0
We multiply parentheses
9c+765+72=0
We add all the numbers together, and all the variables
9c+837=0
We move all terms containing c to the left, all other terms to the right
9c=-837
c=-837/9
c=-93
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