C(x)=30.50-0.20x

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Solution for C(x)=30.50-0.20x equation: 



(C)=30.50-0.20C

We move all terms to the left:

(C)-(30.50-0.20C)=0

We add all the numbers together, and all the variables

C-(-0.2C+30.5)=0

We get rid of parentheses

C+0.2C-30.5=0

We add all the numbers together, and all the variables

1.2C-30.5=0

We move all terms containing C to the left, all other terms to the right

1.2C=30.5

C=30.5/1.2

C=25+0.5/1.2

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