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-73.25

Back to the equation:

-(4.5n-73.25)



We get rid of parentheses

-4.5n+73.25+113.5=0

We add all the numbers together, and all the variables

-4.5n+186.75=0

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

-4.5n=-186.75

n=-186.75/-4.5

n=41+1/2

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