3.9+6=3n-12

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Solution for 3.9+6=3n-12 equation: 



3.9+6=3n-12

We move all terms to the left:

3.9+6-(3n-12)=0

We add all the numbers together, and all the variables

-(3n-12)+9.9=0

We get rid of parentheses

-3n+12+9.9=0

We add all the numbers together, and all the variables

-3n+21.9=0

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

-3n=-21.9

n=-21.9/-3

n=7+0.9/3

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