Posted by Jade on Wednesday, April 11, 2012 at 1:18pm.
9X+y=2
4Xy=17

Algebra  Thongfye, Wednesday, April 11, 2012 at 1:36pm
use elimination method to solve it.

Algebra  Bosnian, Wednesday, April 11, 2012 at 3:14pm
9 x + y = 2
4 x y = 17 Add
______________
9 x + (  4x ) + y + (  y ) = 2 + 17
9 x  4 x + y  y = 2 + 17
5 x + 0 = 19
5 x = 19 Divide both sides by 5
x = 19 / 5 = 3.8
9 x + y = 2
9 * 19 / 5 + y = 2
171 / 5 + y = 2
y = 2  171 / 5
y = 10 / 5  171 / 5
y =  161 / 5
y =  32.2