n*3-7=83

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Solution for n*3-7=83 equation: 



n*3-7=83

We move all terms to the left:

n*3-7-(83)=0

We add all the numbers together, and all the variables

n*3-90=0

Wy multiply elements

3n-90=0

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

3n=90

n=90/3

n=30

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