r-9=9+3r

Simple and best practice solution for r-9=9+3r 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 r-9=9+3r equation: 



r-9=9+3r

We move all terms to the left:

r-9-(9+3r)=0

We add all the numbers together, and all the variables

r-(3r+9)-9=0

We get rid of parentheses

r-3r-9-9=0

We add all the numbers together, and all the variables

-2r-18=0

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

-2r=18

r=18/-2

r=-9

See similar equations:

| 4x+3/4=5x3/4 | | 9-b=-7+3b-4 | | 1000000000000k+9000=1 | | 1=6.66x-15 | | 2p+900=10 | | -6-10m=-9m-2 | | 4x3/4=5x3/4 | | 2u+5=-3+3u | | 9=q/11 | | 48=12e | | -0.1k-9.15=2.62+1.5k+2.47 | | x+.025=2000 | | 9.9g-2.79=8.9g-7.19 | | 11p=6 | | 8.67-4.9v=-9.63-1.4v-9.6v | | 5.y+6=2.y-3 | | 1+23=-3(8x-8) | | 9f+10=7f-4 | | 6x=-9x+6 | | 10.x+5.x=90 | | 5t-3=6-9-t | | -6j+2=9-8j+3 | | 3(x+4)-6x=15 | | 13x-33+20×=180 | | 4.3+10m=7.25 | | 5-2k=5-3k | | 15.x+5.x=80 | | 10(140)+1250=y | | 8+(c/3)=-2 | | 3r+11+r+21=180 | | -g-6g-9=10g+9 | | 18x²-25=0 |

Equations solver categories