D damen21 New member Joined Jan 26, 2011 Messages 7 Jan 26, 2011 #1 ok Here is my problem. I am asked to solve this jumbo equation: 2x+y-z=6 and y-x=3 and x+2z=8 Can anyone help. should I try each section alone and then add them up?
ok Here is my problem. I am asked to solve this jumbo equation: 2x+y-z=6 and y-x=3 and x+2z=8 Can anyone help. should I try each section alone and then add them up?
tkhunny Elite Member Joined Apr 12, 2005 Messages 11,322 Jan 26, 2011 #2 Work on the concept of "simultaneous". From y-x=3, get y = 3+x From x+2z=8, get z = (x-8)/2 From 2x+y-z=6 Substitute the new values for y and z 2x+(3+x)-((x-8)/2)=6 Solve for x. You tell me how to find y and z.
Work on the concept of "simultaneous". From y-x=3, get y = 3+x From x+2z=8, get z = (x-8)/2 From 2x+y-z=6 Substitute the new values for y and z 2x+(3+x)-((x-8)/2)=6 Solve for x. You tell me how to find y and z.
