-7(n+3)-2n=-3(n-3)

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Solution for -7(n+3)-2n=-3(n-3) equation: 



-7(n+3)-2n=-3(n-3)

We move all terms to the left:

-7(n+3)-2n-(-3(n-3))=0

We add all the numbers together, and all the variables

-2n-7(n+3)-(-3(n-3))=0

We multiply parentheses

-2n-7n-(-3(n-3))-21=0



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

-3(n-3)

We multiply parentheses

-3n+9

Back to the equation:

-(-3n+9)



We add all the numbers together, and all the variables

-9n-(-3n+9)-21=0

We get rid of parentheses

-9n+3n-9-21=0

We add all the numbers together, and all the variables

-6n-30=0

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

-6n=30

n=30/-6

n=-5

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