5n+9=7n-11

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Solution for 5n+9=7n-11 equation: 



5n+9=7n-11

We move all terms to the left:

5n+9-(7n-11)=0

We get rid of parentheses

5n-7n+11+9=0

We add all the numbers together, and all the variables

-2n+20=0

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

-2n=-20

n=-20/-2

n=+10

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