1/7(x9+21)=-6

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Solution for 1/7(x9+21)=-6 equation: 


x in (-oo:+oo)

(1/7)*(x^9+21) = -6 // + 6

(1/7)*(x^9+21)+6 = 0

1/7*(x^9+21)+6 = 0

1/7*(x^9+21)+6 = 0

1/7*x^9+9 = 0

1/7*x^9+9 = 0

1/7*x^9 = -9 // : 1/7

x^9 = -63

x^9 = -63 // ^ 1/9

x = -63^(1/9)

x = -63^(1/9)

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