7=8c+9

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Solution for 7=8c+9 equation: 



7=8c+9

We move all terms to the left:

7-(8c+9)=0

We get rid of parentheses

-8c-9+7=0

We add all the numbers together, and all the variables

-8c-2=0

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

-8c=2

c=2/-8

c=-1/4

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