15=9-(4s-8)

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Solution for 15=9-(4s-8) equation: 



15=9-(4s-8)

We move all terms to the left:

15-(9-(4s-8))=0



We calculate terms in parentheses: -(9-(4s-8)), so:

9-(4s-8)

determiningTheFunctionDomain
-(4s-8)+9

We get rid of parentheses

-4s+8+9

We add all the numbers together, and all the variables

-4s+17

Back to the equation:

-(-4s+17)



We get rid of parentheses

4s-17+15=0

We add all the numbers together, and all the variables

4s-2=0

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

4s=2

s=2/4

s=1/2

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