12r-9r=15

Simple and best practice solution for 12r-9r=15 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 12r-9r=15 equation: 



12r-9r=15

We move all terms to the left:

12r-9r-(15)=0

We add all the numbers together, and all the variables

3r-15=0

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

3r=15

r=15/3

r=5

See similar equations:

| 2x2+4x-6=0,x= | | 13=17+x | | 9y-13=-10+12y | | 8x(3.8+13.2)=-6 | | 5v^2-29v-42=0 | | 9+x=3-4x9+x+3-4x | | 3(x+2)+4=22 | | 34+2x+82=180 | | (3x-1.5)*2=(3x+9) | | 7b-6b=6 | | 6=2(t*t)+4t+8 | | -2y-20=10/8y | | 12=-3(z-20) | | 3p+5p+4=8p+4 | | 3(4x-8)=108 | | X+26/2x-1.8=0 | | 7x^2+79+90=0 | | 12x²+2x=14 | | 3=-3(d-9) | | 6t-8t=16 | | 3/h=1 | | -7.5x+6x=2.55 | | 6-p=-1 | | (5u^2-7u+4)+(-6u^2+2u+3)= | | v–9 =14 | | 3.5x-7.2=4.5x+7.2 | | 14= v–9 | | x/10=15/18-x | | 7^x=+12000 | | -3(3x-5)=78 | | Y=5(0.82)t/5 | | -4x-16=-6x+18 |

Equations solver categories