9n+100=4n

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Solution for 9n+100=4n equation: 



9n+100=4n

We move all terms to the left:

9n+100-(4n)=0

We add all the numbers together, and all the variables

5n+100=0

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

5n=-100

n=-100/5

n=-20

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