21=-3+5(c+7)

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Solution for 21=-3+5(c+7) equation: 



21=-3+5(c+7)

We move all terms to the left:

21-(-3+5(c+7))=0



We calculate terms in parentheses: -(-3+5(c+7)), so:

-3+5(c+7)

determiningTheFunctionDomain
5(c+7)-3

We multiply parentheses

5c+35-3

We add all the numbers together, and all the variables

5c+32

Back to the equation:

-(5c+32)



We get rid of parentheses

-5c-32+21=0

We add all the numbers together, and all the variables

-5c-11=0

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

-5c=11

c=11/-5

c=-2+1/5

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