2r+r-7=21

Simple and best practice solution for 2r+r-7=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 2r+r-7=21 equation: 



2r+r-7=21

We move all terms to the left:

2r+r-7-(21)=0

We add all the numbers together, and all the variables

3r-28=0

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

3r=28

r=28/3

r=9+1/3

See similar equations:

| Y=7y-15+2y | | x-1.6=25 | | x+0.9=13 | | 55/6x=180 | | 2304=72x32 | | 9+x+x=40+5 | | 8xx42=180 | | 180=3x+5x-40 | | 3+4x-11=23 | | q/9+55=61 | | 100x+7=15 | | -4=16-5x, | | 3=5(x-1)=48 | | 4.5=(2.1x+3) | | 160+12m=4000 | | q/2+-3.1=-5.1 | | r/2+21=28 | | 2t−7−5t=11 | | 5x2−3=87 | | j+11.7=17.7 | | ?(7n)+6=1 | | j+7.9/3=3.57 | | X+(-y)=-2 | | 3x+5x-40=180 | | 8(x-2=96 | | 17+6v=71 | | 2y=16.4 | | -5(4x+3)=5 | | 4-10*n=126 | | -45=-9(x+6) | | 7n+24=21 | | x-5|=3 |

Equations solver categories