n*3-12=48

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Solution for n*3-12=48 equation: 



n*3-12=48

We move all terms to the left:

n*3-12-(48)=0

We add all the numbers together, and all the variables

n*3-60=0

Wy multiply elements

3n-60=0

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

3n=60

n=60/3

n=20

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