If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
((6*x^3)/7)*y = 0
((6*x^3)/7)*y = 0
((6*x^3)/7)*y = 0
6/7*x^3*y = 0 // : 6/7*y
x^3 = 0
x = 0
x in (-oo:0) U (0:+oo)
(((6*x^3)/7)*y)^-4 = 0
2401/1296*x^-12*y^-4 = 0 // : 2401/1296*y^-4
x^-12 = 0
x należy do O
x belongs to the empty set
| 2w^6+15w^5+25w^4=0 | | 7/2✖️3/5 | | 5w-27=56 | | -4-2x=-3x+2 | | -6=-3+3v | | 2x^2-5x=125 | | 7y^7+28y^6+28y^5=0 | | 20m^2n^3-12m^2n^2-4m^3n= | | X+(X*.087)=3119.29 | | 9v^2-49=0 | | 2(5-3x)=1/16 | | 7-4(a-3)=23 | | -3x-4=-x+4 | | 7c-4c+10=-4+13 | | 4.7x+x=180 | | -3ln(2-X)+6=-3 | | 7x-9y=-2 | | 7x+1-3x=16-2x-3 | | 7c-4c+10=9 | | 0.5(12-2x)-4=5x+2(x-7) | | -4(4+3)=-16 | | sec^2(x)-2=0 | | 3.1x+2=6x-2(1+2.4x)+1.53 | | -(2-7k)=-30-5k | | 1/3*-4-1 | | 220=11x+11y | | -3-3x=-2x+3 | | (x)(x-18)=1440 | | x^2+25-2x+9=0 | | 203=3x+14y | | -6+x=6-2x | | 2/x+(5/2)=4 |