3(c-20)=-18

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Solution for 3(c-20)=-18 equation: 



3(c-20)=-18

We move all terms to the left:

3(c-20)-(-18)=0

We add all the numbers together, and all the variables

3(c-20)+18=0

We multiply parentheses

3c-60+18=0

We add all the numbers together, and all the variables

3c-42=0

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

3c=42

c=42/3

c=14

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