7y^2-11/3y-2/3=0

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Solution for 7y^2-11/3y-2/3=0 equation: 


y in (-oo:+oo)

7*y^2-((11/3)*y)-(2/3) = 0

7*y^2+(-11/3)*y-2/3 = 0

7*y^2-11/3*y-2/3 = 0

DELTA = (-11/3)^2-(-2/3*4*7)

DELTA = 289/9

DELTA > 0

y = ((289/9)^(1/2)+11/3)/(2*7) or y = (11/3-(289/9)^(1/2))/(2*7)

y = 2/3 or y = -1/7

y in { -1/7, 2/3 }

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