C(x)=30-0.09x

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Solution for C(x)=30-0.09x equation: 



(C)=30-0.09C

We move all terms to the left:

(C)-(30-0.09C)=0

We add all the numbers together, and all the variables

C-(-0.09C+30)=0

We get rid of parentheses

C+0.09C-30=0

We add all the numbers together, and all the variables

1.09C-30=0

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

1.09C=30

C=30/1.09

C=27+0.57/1.09

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