Please help! [closed]
11x+15y+23=0, 7x-2y-20=0 I tried,
11x+15y+23=0------1 7x-2y-20=0-----------2
11x+15y=-23 =>y=-23x-11x/15 (substituting the value of y in eq 2)
11x+15(-23x-11x/15)=20
11x+15y+23=0, 7x-2y-20=0 I tried,
11x+15y+23=0------1 7x-2y-20=0-----------2
11x+15y=-23 =>y=-23x-11x/15 (substituting the value of y in eq 2)
11x+15(-23x-11x/15)=20
var("x y") solve( [11x+15y+23 ==0, 7x-2y-20 == 0], [x,y] )
Asked: 2014-07-18 21:35:35 +0100
Seen: 833 times
Last updated: Jul 18 '14