7(c-9)=84

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Solution for 7(c-9)=84 equation: 



7(c-9)=84

We move all terms to the left:

7(c-9)-(84)=0

We multiply parentheses

7c-63-84=0

We add all the numbers together, and all the variables

7c-147=0

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

7c=147

c=147/7

c=21

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