4n+40=100-n

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Solution for 4n+40=100-n equation: 



4n+40=100-n

We move all terms to the left:

4n+40-(100-n)=0

We add all the numbers together, and all the variables

4n-(-1n+100)+40=0

We get rid of parentheses

4n+1n-100+40=0

We add all the numbers together, and all the variables

5n-60=0

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

5n=60

n=60/5

n=12

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