20+19n=18n+9-9

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Solution for 20+19n=18n+9-9 equation: 



20+19n=18n+9-9

We move all terms to the left:

20+19n-(18n+9-9)=0

We add all the numbers together, and all the variables

19n-(+18n)+20=0

We get rid of parentheses

19n-18n+20=0

We add all the numbers together, and all the variables

n+20=0

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

n=-20

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