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)
1/y = x^3 // - x^3
1/y-x^3 = 0
-1*x^3 = -y^-1 // : -1
x^3 = y^-1
x^3 = y^-1 // ^ 1/3
x = y^(-1/3)
x = y^(-1/3)
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