4(-9-4n)-4=-3n-9(n+12)

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Solution for 4(-9-4n)-4=-3n-9(n+12) equation: 



4(-9-4n)-4=-3n-9(n+12)

We move all terms to the left:

4(-9-4n)-4-(-3n-9(n+12))=0

We add all the numbers together, and all the variables

4(-4n-9)-(-3n-9(n+12))-4=0

We multiply parentheses

-16n-(-3n-9(n+12))-36-4=0



We calculate terms in parentheses: -(-3n-9(n+12)), so:

-3n-9(n+12)

We multiply parentheses

-3n-9n-108

We add all the numbers together, and all the variables

-12n-108

Back to the equation:

-(-12n-108)



We add all the numbers together, and all the variables

-16n-(-12n-108)-40=0

We get rid of parentheses

-16n+12n+108-40=0

We add all the numbers together, and all the variables

-4n+68=0

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

-4n=-68

n=-68/-4

n=+17

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