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21.27=3c-3(6-2c)
We move all terms to the left:
21.27-(3c-3(6-2c))=0
We add all the numbers together, and all the variables
-(3c-3(-2c+6))+21.27=0
We calculate terms in parentheses: -(3c-3(-2c+6)), so:We get rid of parentheses
3c-3(-2c+6)
We multiply parentheses
3c+6c-18
We add all the numbers together, and all the variables
9c-18
Back to the equation:
-(9c-18)
-9c+18+21.27=0
We add all the numbers together, and all the variables
-9c+39.27=0
We move all terms containing c to the left, all other terms to the right
-9c=-39.27
c=-39.27/-9
c=4+1/2.75229357798
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