5r-21=2r

Simple and best practice solution for 5r-21=2r 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 5r-21=2r equation: 



5r-21=2r

We move all terms to the left:

5r-21-(2r)=0

We add all the numbers together, and all the variables

3r-21=0

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

3r=21

r=21/3

r=7

See similar equations:

| .06x=65 | | (3x^2-2x)=5 | | x+20+7x=360 | | -.5x+3=x | | 112=7-5x | | 4d-9=7d | | 12x-25+5+8x=180 | | 6+5x=6-3x | | 3v-3v+5v=10 | | -2x-1.4=7+3x | | 20x+40=-20x+20 | | 10x-2=-2x+-2 | | 18w-9w-4w-4w=14 | | 4-11x=9-5x(10/5(3+5^3)=6x) | | 11h-11h+h-1=14 | | 7y+3=12y+4 | | 2v-2v+2v-1=17 | | 20-4+x=33 | | 8k-7k+k-1=13 | | 1-5y=31 | | 1/4y+8=0 | | 2(4v-18)-(3v-11)=-52 | | 0.2t+0.8(t-0.3)=3.48 | | 6x+8=142 | | 9e+4=-5e+14+13e= | | 2/3x+22/3=1.5x-1.5 | | (−2x)=^2 | | −54=-9t | | 2x+94=7x+46 | | 12x+9=147 | | (5+2y)4=38 | | 5=2x+2=12 |

Equations solver categories