-7+3n-9n=12n-5

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Solution for -7+3n-9n=12n-5 equation: 



-7+3n-9n=12n-5

We move all terms to the left:

-7+3n-9n-(12n-5)=0

We add all the numbers together, and all the variables

-6n-(12n-5)-7=0

We get rid of parentheses

-6n-12n+5-7=0

We add all the numbers together, and all the variables

-18n-2=0

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

-18n=2

n=2/-18

n=-1/9

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