Hi everyone,

This is the problem I am having issues with:

4x + y - 3z = 11

2x - 3y + 27 = 9

x + y + z = (-3)

The instructions are to solve for x, y, and z.

I tried using two of the equations and eliminating one of the variables, then solving for one of the others. But then I got stuck- I didn't know if I should substitute that equation into one of the others... or do something else entirely! I'm not completely sure that I had started it off correctly, either. :(

I did read all of the lessons about Systems of Linear Equations and the Gaussian system but they only confused me more! Please help me...