12n+15=-20-9n-10

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Solution for 12n+15=-20-9n-10 equation: 



12n+15=-20-9n-10

We move all terms to the left:

12n+15-(-20-9n-10)=0

We add all the numbers together, and all the variables

12n-(-9n-30)+15=0

We get rid of parentheses

12n+9n+30+15=0

We add all the numbers together, and all the variables

21n+45=0

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

21n=-45

n=-45/21

n=-2+1/7

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