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((9*x^5)/25)*y^6-(16*z^7) = 0
((9*x^5)/25)*y^6-16*z^7 = 0
9/25*x^5*y^6 = -(-16*z^7) // : 9/25*y^6
x^5 = 400/9*y^-6*z^7
x^5 = 400/9*y^-6*z^7 // ^ 1/5
x = (400/9)^(1/5)*y^(-6/5)*z^(7/5)
x = (400/9)^(1/5)*y^(-6/5)*z^(7/5)
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