If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r in (-oo:+oo)
(1200*r)/30.24 = 0
39.68253968*r = 0 // : 39.68253968
r = 0
r = 0
| 13+3n-7n+1=-14n+9n | | (65)65+(65)65= | | -(-3y+v)+3(5v-6y)= | | (4x)(2w^8)(6x^4w^3)= | | -4y+11=17-3y | | 15b/2a | | 2w+4x+15y+6w+11x+7y= | | 4ab/5b^4 | | x^2=0.0016 | | 3+3.2p=5.56 | | 1*(-4+(-8))= | | 3.2p=5.56 | | 7/x=2 | | X^2=4900 | | 30=5(x+11) | | 4.3-1.95x=4.4-1.98x | | x/7=0.02 | | g(x)=-2x^2-3 | | 123=7 | | (4x-8)+2=12 | | 30/8=90/m | | 3s-21=-12+2s | | 7y-2=-56+y | | 75n+100=5509 | | x/7=0.18 | | 5/3s=10 | | -5/9m=-20 | | -5/7r=-20 | | -30p=-300 | | 2x-3=.5x-6 | | x*2=20 | | t-48=44 |