2n+18n+9=20n+9

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Solution for 2n+18n+9=20n+9 equation: 



2n+18n+9=20n+9

We move all terms to the left:

2n+18n+9-(20n+9)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

20n-20n-9+9=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

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