Hello, googoogaga!

1) For the following system of equations, use Gaussian elimination

to obtain an equivalent system whose coefficient matrix is in row echelon form.

Indicate whether the system is consistent or not.

If system is consistent and involves variables, transform it to reduced row echelon form

and find all solutions for variables.

. .

Solution: After adding and multiplying rows,

. . this is the matrix i got so far: . . there may be an error

I do not know where to go from here . . . . keep going

The final answer in the back of the book is:

. . . .

We have: .

We have: .

On the right side, replace with a parameter .

Therefore: .