Gaussian elimination: last row is "0 0 -11 = -11"; how do I turn the 11 into a 1?

[the305itself]

Gaussian elimination: last row is "0 0 -11 = -11"; how do I turn the 11 into a 1?

This is a matrix I am having issues creating the Gaussian elimination with. I have no idea how to turn that -11 into a one. Does anyone have a solution to this?

1 2 -1 = -3

0 1 1 = 1.5

0 0 -11 = -11

 

[mmm4444bot]

I have no idea how to turn that -11 into a one. Does anyone have a solution to this

Hi. You've only got one step left, to get Reduced Row Echelon form (REF).

Multiply row 3 by -1/11. :cool:

 

[the305itself]

Hi. Is your goal Reduced Echelon Form (REF)?

If so, then you've only got one step left.

Multiply row 3 by -1/11. :cool:

Oh my Goodness you did it! I was confusing myself by using decimals! Thanks a lot!

 

[mmm4444bot]

Thanks a lot!

You're welcome!

By the way, did you check out the forum guidelines link, in your other thread? There's no need to create duplicate posts. Cheers :cool: