using quadratic formula 3y2=6+7y

3 y^2 -7y - 6 = 0
When using the quadratic formaul to find y, a = 3, b = -7 and c = -6

y = [-b +/- sqrt (b^2 -4ac)]/2a
= {7 +/- sqrt (49 + 72)}/6
= {7 +/- 11)/6
= +3 or -2/3

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