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

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



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

We move all terms to the left:

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

We multiply parentheses

12n-(-3n+9)-21=0

We get rid of parentheses

12n+3n-9-21=0

We add all the numbers together, and all the variables

15n-30=0

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

15n=30

n=30/15

n=2

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