12y-9+3y=21

Simple and best practice solution for 12y-9+3y=21 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 12y-9+3y=21 equation: 



12y-9+3y=21

We move all terms to the left:

12y-9+3y-(21)=0

We add all the numbers together, and all the variables

15y-30=0

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

15y=30

y=30/15

y=2

See similar equations:

| n^2+6n+153=0 | | (x-2)/4+5=7 | | n-(-17)=9 | | 24p*3=129 | | -12(x+1)=4(x+53) | | x=34=73 | | -16=m+15 | | -3x-(-11)=-10 | | -2p+23=13 | | 0.7x+9=23 | | 32.9+32.9=k | | Xx10=59 | | f/4-24=-27 | | -5x-4=16-10x | | g/3+14=26 | | 14a+21=49-14a | | -4x+1=17-8x | | 5x-18+2x*12=180 | | 6x+8=80;50 | | (0.3x0.3)+0.23=H | | 9x-12=7x+9 | | d+10+3d-5=37 | | X-25=150+6x | | 4=-4y+16 | | 13x-17+82=559 | | 12(x-2)+3x=(x+12)+10x | | 34=v10+ 32 | | 9(9.5y+0.4)=5(0.1y+1.3)+0.3 | | 2m+12=34 | | 9+c=56,c= | | 3(x+4)+13=4x-5 | | 4+5(x=67) |

Equations solver categories