I've studied about matrix for 1 semester.

And now, I'm studying about Gaussian Elimination in Matrix Equation.

we have to compose the augmented matrix equation, right? the proportion of the matrix of numeral coefficients and the answer of the equation will equal to the matrix of the variables.

But!! Yesterday, my teacher gave me the problem like this:

x+y-z

y+z-x

-z+x-y

And he didn't give anymore he didn't give that each equation equals to how many...he said that I have to do by using Gaussian Elimination. I don't know how to solve it. Please help me....

Thanks