X-x3/7=20

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Solution for X-x3/7=20 equation: 


x in (-oo:+oo)

X-((x^3)/7) = 20 // - 20

X-((x^3)/7)-20 = 0

-1/7*x^3 = -(X-20) // : -1/7

x^3 = -7*(20-X)

x^3 = -7*(20-X) // ^ 1/3

x = -7^(1/3)*(20-X)^(1/3)

x = -7^(1/3)*(20-X)^(1/3)

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