1/9x^2-1/4y^2

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Solution for 1/9x^2-1/4y^2 equation: 


x in (-oo:+oo)

(1/9)*x^2-((1/4)*y^2) = 0

(1/9)*x^2+(-1/4)*y^2 = 0

1/9*x^2 = -(-1/4*y^2) // : 1/9

x^2 = 9/4*y^2

x^2 = 9/4*y^2 // ^ 1/2

abs(x) = 3/2*y

x = 3/2*y or x = -(3/2*y)

x in { 3/2*y, -(3/2*y) }

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