30=-2(-n+3)

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Solution for 30=-2(-n+3) equation: 



30=-2(-n+3)

We move all terms to the left:

30-(-2(-n+3))=0

We add all the numbers together, and all the variables

-(-2(-1n+3))+30=0



We calculate terms in parentheses: -(-2(-1n+3)), so:

-2(-1n+3)

We multiply parentheses

2n-6

Back to the equation:

-(2n-6)



We get rid of parentheses

-2n+6+30=0

We add all the numbers together, and all the variables

-2n+36=0

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

-2n=-36

n=-36/-2

n=+18

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