If it's not what You are looking for type in the equation solver your own equation and let us solve it.
63=r=31
We move all terms to the left:
63-(r)=0
We add all the numbers together, and all the variables
-1r+63=0
We move all terms containing r to the left, all other terms to the right
-r=-63
r=-63/-1
r=+63
| 30-15y+14y=40 | | 21=7y-4y | | y2=y+132 | | y^2+0.2y+0.01-9y^2=0 | | 22y=-4 | | (22.5x)=315 | | 4x^2-58x+208=0 | | 8x-(5x-3)=0 | | 13x^2+8x-14=0 | | 9(n+3)=17 | | k2-6k-51=0 | | 9(n+3)=18 | | 11y-9=8y-30 | | -c+0.6=-0.7 | | 7t-4=9t-5 | | 100=10+15d | | (4x+8)(5x-25)=0 | | 30+7y=2y-5 | | 50+x=95 | | 26+x=84 | | 3n-7n-6=0 | | (4-19)+(3x+1)=122 | | 16/x=4/(x-8 | | 60=w+15 | | 23=g-7 | | x+x+22=30 | | 5e-6e=2e | | 5x+2x-x=360 | | .25=2.5x10^ | | a=1.2b=4 | | -2e+6=10 | | 3x-10+25=180 |