y^2=49/81

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Solution for y^2=49/81 equation: 


y in (-oo:+oo)

y^2 = 49/81 // - 49/81

y^2-(49/81) = 0

y^2-49/81 = 0

1*y^2 = 49/81 // : 1

y^2 = 49/81

y^2 = 49/81 // ^ 1/2

abs(y) = 7/9

y = 7/9 or y = -7/9

y in { 7/9, -7/9 }

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