2x/7x-49

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Solution for 2x/7x-49 equation: 


x in (-oo:+oo)

((2*x)/7)*x-49 = 0

2/7*x^2 = 49 // : 2/7

x^2 = 343/2

x^2 = 343/2 // ^ 1/2

abs(x) = (343/2)^(1/2)

x = (343/2)^(1/2) or x = -(343/2)^(1/2)

x in { (343/2)^(1/2), -(343/2)^(1/2) }

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