3(n+8)=9

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



3(n+8)=9

We move all terms to the left:

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

We multiply parentheses

3n+24-9=0

We add all the numbers together, and all the variables

3n+15=0

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

3n=-15

n=-15/3

n=-5

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