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8(c+9)+8.5c=8
We move all terms to the left:
8(c+9)+8.5c-(8)=0
We add all the numbers together, and all the variables
8.5c+8(c+9)-8=0
We multiply parentheses
8.5c+8c+72-8=0
We add all the numbers together, and all the variables
16.5c+64=0
We move all terms containing c to the left, all other terms to the right
16.5c=-64
c=-64/16.5
c=-3+5.8/6.6
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