18-(c+2)=21

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Solution for 18-(c+2)=21 equation: 



18-(c+2)=21

We move all terms to the left:

18-(c+2)-(21)=0

We add all the numbers together, and all the variables

-(c+2)-3=0

We get rid of parentheses

-c-2-3=0

We add all the numbers together, and all the variables

-1c-5=0

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

-c=5

c=5/-1

c=-5

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