-9(c-4)=81

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Solution for -9(c-4)=81 equation: 



-9(c-4)=81

We move all terms to the left:

-9(c-4)-(81)=0

We multiply parentheses

-9c+36-81=0

We add all the numbers together, and all the variables

-9c-45=0

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

-9c=45

c=45/-9

c=-5

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