-7n-5n=-9-3n

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



-7n-5n=-9-3n

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-12n-(-3n-9)=0

We get rid of parentheses

-12n+3n+9=0

We add all the numbers together, and all the variables

-9n+9=0

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

-9n=-9

n=-9/-9

n=1

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