2x/9x-7

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Solution for 2x/9x-7 equation: 


x in (-oo:+oo)

((2*x)/9)*x-7 = 0

2/9*x^2 = 7 // : 2/9

x^2 = 63/2

x^2 = 63/2 // ^ 1/2

abs(x) = (63/2)^(1/2)

x = (63/2)^(1/2) or x = -(63/2)^(1/2)

x in { (63/2)^(1/2), -(63/2)^(1/2) }

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