Solving Systems of Equations in Three Variables:

Question

3x+4y+z=1
x+3y-z=-2
-2x+y-2z=-5

Please show work

Answer 1

plug in your coefficients at

http://www.gregthatcher.com/Mathematics/GaussJordan.aspx

to see all the details

Or, you can try this:

http://www.wolframalpha.com/input/?i=solve+{{3%2C4%2C1}%2C{1%2C3%2C-2}%2C{-2%2C1%2C-2}}*{{x}%2C{y}%2C{z}}%3D{{1}%2C{-2}%2C{-5}}