7n-9=2n-9+5n

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Solution for 7n-9=2n-9+5n equation: 



7n-9=2n-9+5n

We move all terms to the left:

7n-9-(2n-9+5n)=0

We add all the numbers together, and all the variables

7n-(7n-9)-9=0

We get rid of parentheses

7n-7n+9-9=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

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