21=-5-(-10c-6)

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Solution for 21=-5-(-10c-6) equation: 



21=-5-(-10c-6)

We move all terms to the left:

21-(-5-(-10c-6))=0



We calculate terms in parentheses: -(-5-(-10c-6)), so:

-5-(-10c-6)

determiningTheFunctionDomain
-(-10c-6)-5

We get rid of parentheses

10c+6-5

We add all the numbers together, and all the variables

10c+1

Back to the equation:

-(10c+1)



We get rid of parentheses

-10c-1+21=0

We add all the numbers together, and all the variables

-10c+20=0

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

-10c=-20

c=-20/-10

c=+2

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