120=50+(n-40)/4

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Solution for 120=50+(n-40)/4 equation: 



120=50+(n-40)/4

We move all terms to the left:

120-(50+(n-40)/4)=0

We multiply all the terms by the denominator


-(50+(n-40)+120*4)=0



We calculate terms in parentheses: -(50+(n-40)+120*4), so:

50+(n-40)+120*4

determiningTheFunctionDomain
(n-40)+50+120*4

We add all the numbers together, and all the variables

(n-40)+530

We get rid of parentheses

n-40+530

We add all the numbers together, and all the variables

n+490

Back to the equation:

-(n+490)



We get rid of parentheses

-n-490=0

We add all the numbers together, and all the variables

-1n-490=0

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

-n=490

n=490/-1

n=-490

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