12=3n-9

Simple and best practice solution for 12=3n-9 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 12=3n-9 equation: 



12=3n-9

We move all terms to the left:

12-(3n-9)=0

We get rid of parentheses

-3n+9+12=0

We add all the numbers together, and all the variables

-3n+21=0

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

-3n=-21

n=-21/-3

n=+7

See similar equations:

| 4u+18=7u+12 | | 8a-11=6a+1 | | 3n-5=20-4 | | 4u+14=7u+12 | | v+30/9=4 | | 10x-4x+5=-19 | | 24+6x=5x-30+60 | | 6/x=9+5x | | 9b-36=2b+6 | | 3x²+9x+18=0 | | 4+3k=14 | | 5(1+6d)=25 | | 2a-1=219 | | r/3+16=19 | | 0.4r+3+0.6r=1.5(r-3) | | 5y-3/4=2/3y | | -(x-17)=9 | | c/4+14=18 | | 5x+3=13-3x | | 5x+3=12-3x | | 3x=5x-5=19 | | 14-3x=-8x | | 6x+15x+75=90 | | 2(x-7)-9=-3 | | 13+2{5x-2}=29 | | .5x+.15(70)=29.5 | | 3x+3x+x-6=15 | | u/2-12=2 | | 1.5(x-4)-(3-2x)=50-0.5x-4+5x | | 6x+6=20-3x+4x | | -8k+6=-10k=10 | | 3(2x-1)-3=6(x-1) |

Equations solver categories