30/5=90/n

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Solution for 30/5=90/n equation: 



30/5=90/n

We move all terms to the left:

30/5-(90/n)=0



Domain of the equation: n)!=0

n!=0/1

n!=0

n∈R



We add all the numbers together, and all the variables

-(+90/n)+30/5=0

We add all the numbers together, and all the variables

-(+90/n)+6=0

We get rid of parentheses

-90/n+6=0

We multiply all the terms by the denominator


6*n-90=0

We add all the numbers together, and all the variables

6n-90=0

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

6n=90

n=90/6

n=15

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