-3n+9=-4(n-3)-7

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Solution for -3n+9=-4(n-3)-7 equation: 



-3n+9=-4(n-3)-7

We move all terms to the left:

-3n+9-(-4(n-3)-7)=0



We calculate terms in parentheses: -(-4(n-3)-7), so:

-4(n-3)-7

We multiply parentheses

-4n+12-7

We add all the numbers together, and all the variables

-4n+5

Back to the equation:

-(-4n+5)



We get rid of parentheses

-3n+4n-5+9=0

We add all the numbers together, and all the variables

n+4=0

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

n=-4

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