If it's not what You are looking for type in the equation solver your own equation and let us solve it.
((2/5)/21)/4 = 0
(2/5/21)/4 = 0
2/105/4 = 0
1/210 = 0
L <> R
| 2x+3(18x-4)=86-15x | | 5z^2+17z+6=0 | | 12x+2=142-2x | | x-4=1/2x-8-x/2 | | 6+5+5=650 | | 2x+x+x-8=180 | | x^2+39w=0 | | 5x-24=7x-32 | | h=16t^2+50 | | 2x^3=188 | | 0=z^2+12z-48 | | 7000+7y=3y-1000 | | 9/(x^2-9) | | 8(-5+7k)= | | 5(x-2)+3+(1/3x+1)=2(3x-4)+2 | | 20x=12+16 | | 3(2y-6)=-26-2y | | 9x-4=3x+12 | | 5a-6+2=8 | | 4x^2-1=-5x | | 3/5y+2/5=4 | | -3y+6x=18 | | (4k)(3h)= | | 5.00+0.80c=15 | | tn=5+6n | | 2x-y-2z=-1 | | (-x^2)+(2x)= | | 48y=36x-27 | | 13.50x-540=56 | | n/18=12.6 | | 12/n=36 | | -8=4x+18 |