5n+3=45-n

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Solution for 5n+3=45-n equation: 



5n+3=45-n

We move all terms to the left:

5n+3-(45-n)=0

We add all the numbers together, and all the variables

5n-(-1n+45)+3=0

We get rid of parentheses

5n+1n-45+3=0

We add all the numbers together, and all the variables

6n-42=0

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

6n=42

n=42/6

n=7

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