30+3n=7(-6-3n)

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Solution for 30+3n=7(-6-3n) equation: 



30+3n=7(-6-3n)

We move all terms to the left:

30+3n-(7(-6-3n))=0

We add all the numbers together, and all the variables

3n-(7(-3n-6))+30=0



We calculate terms in parentheses: -(7(-3n-6)), so:

7(-3n-6)

We multiply parentheses

-21n-42

Back to the equation:

-(-21n-42)



We get rid of parentheses

3n+21n+42+30=0

We add all the numbers together, and all the variables

24n+72=0

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

24n=-72

n=-72/24

n=-3

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