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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

3(-4n+3)-7n

We add all the numbers together, and all the variables

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

We multiply parentheses

-7n-12n+9

We add all the numbers together, and all the variables

-19n+9

Back to the equation:

-(-19n+9)



We get rid of parentheses

4n+19n-9+9=0

We add all the numbers together, and all the variables

23n=0

n=0/23

n=0

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