-(c+9)=-18

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Solution for -(c+9)=-18 equation: 



-(c+9)=-18

We move all terms to the left:

-(c+9)-(-18)=0

We add all the numbers together, and all the variables

-(c+9)+18=0

We get rid of parentheses

-c-9+18=0

We add all the numbers together, and all the variables

-1c+9=0

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

-c=-9

c=-9/-1

c=+9

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