(adsbygoogle = window.adsbygoogle || []).push({}); Linear Algebra - System of 2 Equations with 3 Variables--possible?

1. The problem statement, all variables and given/known data

Solve: x1-3x2+4x3=-4

3x1-7x2+7x3=-8

-4x1+6x2-x3=7

3. The attempt at a solution

I was able to make it to:

1 -3 4 -4

0 -10 25 -11

0 0 0 0

So the third row goes away, and I am left with:

1 -3 4 -4

0 -10 25 -11

I am pretty sure that cannot be solved, or am I overlooking something? Thank you in advance!!

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Linear Algebra - System of 2 Equations with 3 Variables-possible?

**Physics Forums | Science Articles, Homework Help, Discussion**