If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2r-r+2r-r=6
We move all terms to the left:
2r-r+2r-r-(6)=0
We add all the numbers together, and all the variables
2r-6=0
We move all terms containing r to the left, all other terms to the right
2r=6
r=6/2
r=3
| 4=11.5+3r | | 5n+18=4n+26 | | 2r−r+2r−r=6 | | x.6+4=12 | | -x+66+34-3x=180 | | 14x-3x+2x-6x-x=12 | | 3x2+117=4x2+4x | | 8y-16=-35-45 | | 1=v/15+8/15 | | 2x-20=9x-50 | | 4-n=-68 | | 14x−3x+2x−6x−x=12 | | 7g-2g=5 | | 2.5=(1+0.03)^x | | 7÷z+6=5 | | 12z-12z+5z=20 | | 12z−12z+5z=20 | | 3t=-8.163t | | -89+14x=3x=98 | | 58+4y-25=16y-9-5y | | 34-3x+-x+66=180 | | m+m-m=6 | | 2(3a+3)+1=5a-6-2a+4 | | k/8-10=-11 | | (6x-13)+(2x+10)+(x+1)=180 | | 31=7(x-2) | | 4(2x+4)=9x-8-3x+38 | | 5x-2+x=9+3x+1 | | -4(m+3)+7=-3(m+1)+2 | | 2(137-9x)=83-3x | | 0+15y=480 | | 2n+26=0 |