3(9-4n)-4=8n-9(n+12)

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Solution for 3(9-4n)-4=8n-9(n+12) equation: 



3(9-4n)-4=8n-9(n+12)

We move all terms to the left:

3(9-4n)-4-(8n-9(n+12))=0

We add all the numbers together, and all the variables

3(-4n+9)-(8n-9(n+12))-4=0

We multiply parentheses

-12n-(8n-9(n+12))+27-4=0



We calculate terms in parentheses: -(8n-9(n+12)), so:

8n-9(n+12)

We multiply parentheses

8n-9n-108

We add all the numbers together, and all the variables

-1n-108

Back to the equation:

-(-1n-108)



We add all the numbers together, and all the variables

-12n-(-1n-108)+23=0

We get rid of parentheses

-12n+1n+108+23=0

We add all the numbers together, and all the variables

-11n+131=0

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

-11n=-131

n=-131/-11

n=11+10/11

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