If it's not what You are looking for type in the equation solver your own equation and let us solve it.
b in (-oo:+oo)
(1/10)*b^3+(10/21)*b^3 = 0
121/210*b^3 = 0 // : 121/210
b^3 = 0
b = 0
b = 0
| 12x+93=12x+7 | | -9+x,x=6 | | 2y-11=15 | | 11a=-143 | | -12+-1x=22-12x+1x | | 2x-1=40 | | x+4(x+2)=44 | | (2,4)y=1/2-7 | | ax=4b | | 2ax-6ay+6x-3by= | | S-2.5=19.5 | | -21x-8=72x | | 65+b=180 | | 3x+4=12(x+2)-5x | | 1/2(10x-4)-(x+7) | | [98-2(6+18)]+75= | | (4/5)M=36 | | 2y-4-7=2y-4 | | b^2+2b-48= | | -5x=-125 | | -5a+24+7a=2a-6a | | 12+3x+1=9+2x | | (X+4)2-36=0 | | 4/5(m)=36 | | -3x-4=-.25(12x-24)-10 | | 8x-1+3=-4 | | 2x+3(5x-18)=108 | | 4L+2w=420 | | 4(x+5)+8=5(x-12) | | 2x+4x=5x-1 | | -4(X-3)+6X= | | 2x-6=1x-9 |