21=7+6(s-3)

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Solution for 21=7+6(s-3) equation: 



21=7+6(s-3)

We move all terms to the left:

21-(7+6(s-3))=0



We calculate terms in parentheses: -(7+6(s-3)), so:

7+6(s-3)

determiningTheFunctionDomain
6(s-3)+7

We multiply parentheses

6s-18+7

We add all the numbers together, and all the variables

6s-11

Back to the equation:

-(6s-11)



We get rid of parentheses

-6s+11+21=0

We add all the numbers together, and all the variables

-6s+32=0

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

-6s=-32

s=-32/-6

s=5+1/3

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