7n-11=12n+9

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Solution for 7n-11=12n+9 equation: 



7n-11=12n+9

We move all terms to the left:

7n-11-(12n+9)=0

We get rid of parentheses

7n-12n-9-11=0

We add all the numbers together, and all the variables

-5n-20=0

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

-5n=20

n=20/-5

n=-4

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