-6n+21=12n-15=

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Solution for -6n+21=12n-15= equation: 



-6n+21=12n-15=

We move all terms to the left:

-6n+21-(12n-15)=0

We get rid of parentheses

-6n-12n+15+21=0

We add all the numbers together, and all the variables

-18n+36=0

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

-18n=-36

n=-36/-18

n=+2

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