3n=40n+5n

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Solution for 3n=40n+5n equation: 



3n=40n+5n

We move all terms to the left:

3n-(40n+5n)=0

We add all the numbers together, and all the variables

3n-(+45n)=0

We get rid of parentheses

3n-45n=0

We add all the numbers together, and all the variables

-42n=0

n=0/-42

n=0

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