4n=20-9n

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Solution for 4n=20-9n equation: 



4n=20-9n

We move all terms to the left:

4n-(20-9n)=0

We add all the numbers together, and all the variables

4n-(-9n+20)=0

We get rid of parentheses

4n+9n-20=0

We add all the numbers together, and all the variables

13n-20=0

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

13n=20

n=20/13

n=1+7/13

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