n+9-7n=-3(n+12)-3(n+2)

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Solution for n+9-7n=-3(n+12)-3(n+2) equation: 



n+9-7n=-3(n+12)-3(n+2)

We move all terms to the left:

n+9-7n-(-3(n+12)-3(n+2))=0

We add all the numbers together, and all the variables

-6n-(-3(n+12)-3(n+2))+9=0



We calculate terms in parentheses: -(-3(n+12)-3(n+2)), so:

-3(n+12)-3(n+2)

We multiply parentheses

-3n-3n-36-6

We add all the numbers together, and all the variables

-6n-42

Back to the equation:

-(-6n-42)



We get rid of parentheses

-6n+6n+42+9=0

We add all the numbers together, and all the variables

51!=0

There is no solution for this equation

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