12r-21=6r

Simple and best practice solution for 12r-21=6r 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-21=6r equation:


12r-21=6r

We simplify the equation to the form, which is simple to understand 
12r-21=6r

We move all terms containing r to the left and all other terms to the right. 
+12r-6r=+21

We simplify left and right side of the equation. 
+6r=+21

We divide both sides of the equation by 6 to get r. 
r=3.5

See similar equations:

| 8x-39=12x+17 | | -8+5y=22 | | 4x^2-9y^2-16x+18y=9 | | 2-3(x-5)=4[5x-7(3x+2)]-9x | | 2a+4=2 | | x^2-2x-48=y | | 1/4x24 | | 1/3*10= | | 4x^2-9y^2-16x+18y-9=0 | | 1/4+24 | | 3x-74=22-5x | | 9n+2=7n-6 | | 1/2-x*2=15 | | 4.5-1.9x=20.1-2x | | 5y/12-3=y/2-4 | | 16/49-v^2=0 | | x/5+x/3=56/15 | | z=bx-d | | 10(x-2)-15=8x+7 | | (7+4x)=9 | | 12x-8x=9 | | -9x-72=110+4x | | 2x^2-15x-42=0 | | 3a+5=35 | | 700-265z=-440z | | 700-265=-440 | | 3y-6=18 | | 3x+11=-13 | | -2z-6=10 | | -6x-52=-2x+36 | | 3x+6=24-6 | | 3y=-5x+15 |

Equations solver categories