5n-2*n=42

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Solution for 5n-2*n=42 equation: 



5n-2*n=42

We move all terms to the left:

5n-2*n-(42)=0

We add all the numbers together, and all the variables

3n-42=0

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

3n=42

n=42/3

n=14

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