113.5=7.75+4.5(18-n)

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Solution for 113.5=7.75+4.5(18-n) equation: 



113.5=7.75+4.5(18-n)

We move all terms to the left:

113.5-(7.75+4.5(18-n))=0

We add all the numbers together, and all the variables

-(7.75+4.5(-1n+18))+113.5=0



We calculate terms in parentheses: -(7.75+4.5(-1n+18)), so:

7.75+4.5(-1n+18)

determiningTheFunctionDomain
4.5(-1n+18)+7.75

We multiply parentheses

-4.5n+81+7.75

We add all the numbers together, and all the variables

-4.5n+88.75

Back to the equation:

-(-4.5n+88.75)



We get rid of parentheses

4.5n-88.75+113.5=0

We add all the numbers together, and all the variables

4.5n+24.75=0

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

4.5n=-24.75

n=-24.75/4.5

n=-5+1/2

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