B bmcdancer New Member Joined Oct 29, 2008 Messages 8 Gender Female HSC N/A Nov 3, 2008 #1 Can some one write the answer out for me? x + y +z =9 3x- y +z = -1 -2x + 2y - 3z= -2 Thank you!!
Z Zeber Member Joined Oct 22, 2008 Messages 86 Gender Male HSC 2011 Nov 3, 2008 #2 x + y +z =9 (1) 3x- y +z = -1 (2) -2x + 2y - 3z= -2 (3) -----(1)+(2) 4x + 2z = 8 ----2.(2) + (3) 4x -z = -4 ----- link this with above eqn. 3z = 12 z = 3 then just solve it.
x + y +z =9 (1) 3x- y +z = -1 (2) -2x + 2y - 3z= -2 (3) -----(1)+(2) 4x + 2z = 8 ----2.(2) + (3) 4x -z = -4 ----- link this with above eqn. 3z = 12 z = 3 then just solve it.
gurmies Drover Joined Mar 20, 2008 Messages 1,209 Location North Bondi Gender Male HSC 2009 Nov 3, 2008 #3 z = 4, y = 5, x = 0....if you really want a worked solution i'll give it, but it's just a long and tedious method
z = 4, y = 5, x = 0....if you really want a worked solution i'll give it, but it's just a long and tedious method
