SOLUTION: solve each system of equation 9y=8x-19 8x+11=2y^2+5y

Algebra ->  Systems-of-equations -> SOLUTION: solve each system of equation 9y=8x-19 8x+11=2y^2+5y      Log On


   



Question 873386: solve each system of equation
9y=8x-19
8x+11=2y^2+5y

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
9y=8x-19 8x = 9y+%2B+19
8x+11=2y^2+5y
(9y+19) + 11 = 2y^2 + 5y
2y^2 - 4y +30 = 0
y^2 - 2y + 15 = 0
(y + 3)(y-5) = 0,
x = -3, 5
y = %288x-19%29%2F9
y = %28-24-19%29%2F9 = -43/9
y = %2840-19%29%2F9 = 21/9 = 7/3