-2+3=21+c

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Solution for -2+3=21+c equation: 



-2+3=21+c

We move all terms to the left:

-2+3-(21+c)=0

We add all the numbers together, and all the variables

-(c+21)-2+3=0

We add all the numbers together, and all the variables

-(c+21)+1=0

We get rid of parentheses

-c-21+1=0

We add all the numbers together, and all the variables

-1c-20=0

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

-c=20

c=20/-1

c=-20

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