3(n-18)=-9

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Solution for 3(n-18)=-9 equation: 



3(n-18)=-9

We move all terms to the left:

3(n-18)-(-9)=0

We add all the numbers together, and all the variables

3(n-18)+9=0

We multiply parentheses

3n-54+9=0

We add all the numbers together, and all the variables

3n-45=0

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

3n=45

n=45/3

n=15

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