3(4n-1)-9=7n+3

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Solution for 3(4n-1)-9=7n+3 equation: 



3(4n-1)-9=7n+3

We move all terms to the left:

3(4n-1)-9-(7n+3)=0

We multiply parentheses

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

We get rid of parentheses

12n-7n-3-3-9=0

We add all the numbers together, and all the variables

5n-15=0

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

5n=15

n=15/5

n=3

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