I need help! Quick!

Question

Perform the specific elementary row operation and write the resulting system of equations.

(Eq1) <---> (Eq3)

-x + y - z + 10

3x - 2y + 6z = 4

x + 2y + z = 5

(Eq1)

(Eq2)

(Eq3)

Answer 1

The row operations are:

1. Any two rows may be interchanged.

2. The elements of any row may be multiplied by a nonzero constant.

3. Any row may be changed by adding each corresponding element of a different

row to it.

I'm going to assume that your nomenclature "(Eq1) <---> (Eq3)" means to use row operation #1 and swap the places of row 1 and row 3. I'm also going to assume the current Eq 1 is supposed to say -x + y - z = 10.

So the new system of equations is:

Eq 1: x + 2y + z = 5

Eq 2: 3x - 2y + 6z = 4

Eq 3: -x + y - z = 10