If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
((25*t^20*x^3)/35)*x^5*y^4 = 0
5/7*t^20*x^8*y^4 = 0 // : 5/7*t^20*y^4
x^8 = 0
x = 0
x = 0
| x^3-9x=45-5x^2 | | 9(x-3)=4x-7 | | 10(1.07)x=2000 | | 4x-10=-2(-2x+5) | | 6x+5=7x-4 | | 14x+20y=10 | | y+0.1y+0.4=(y+4) | | 0.855/6 | | 2x-18=-6x+6 | | -0.6(r+0.02)=1.8 | | x^3-9x=45-5x | | y-2=-2x | | 7u=-6u-26 | | X^2-52X-25=0 | | 7×5/6 | | 5p+2=4 | | [h]=[2/7h-15] | | 4[x+9]=6x | | 3x+4=5(x-3) | | 4y=0.7y | | 39xy= | | 10z+36=10z | | -7=-8+[0.4+6] | | f(x)=5cos^2(x) | | (1/2)x(11)=44 | | 41-4x=6-9x | | [5h-4]-4=-7 | | 5x+11=3x-1 | | 6x-10=4x-10 | | [5h-4]-4=7 | | 9-4x=3-x/2 | | 2z+44=10z |