x3/7=21

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Solution for x3/7=21 equation: 


x in (-oo:+oo)

(x^3)/7 = 21 // - 21

(x^3)/7-21 = 0

1/7*x^3 = 21 // : 1/7

x^3 = 147

x^3 = 147 // ^ 1/3

x = 147^(1/3)

x = 147^(1/3)

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