72/12=78/n

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Solution for 72/12=78/n equation:



72/12=78/n
We move all terms to the left:
72/12-(78/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
-(+78/n)+72/12=0
We add all the numbers together, and all the variables
-(+78/n)+6=0
We get rid of parentheses
-78/n+6=0
We multiply all the terms by the denominator
6*n-78=0
We add all the numbers together, and all the variables
6n-78=0
We move all terms containing n to the left, all other terms to the right
6n=78
n=78/6
n=13

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