SOLUTION: does anyone know how to solve x,y,z equations for x and explain?! 2x + y + z = 0 3x - y + z = 3 7x - 5y

SOLUTION: does anyone know how to solve x,y,z equations for x and explain?! 2x + y + z = 0 3x - y + z = 3 7x - 5y - 3z = 15 thanks!

Question 709325: does anyone know how to solve x,y,z equations for x and explain?!

2x + y + z = 0
3x - y + z = 3
7x - 5y - 3z = 15
thanks!
Answer by jsmallt9(3758) (Show Source): You can put this solution on YOUR website!
There are many ways to solve a system like this, including:

Substitution Method
Linear Combination (aka Elimination) Method
Matrix methods, including:
- Gaussian Elimination
- Inverse Matrices
Cramer's Rule (determinants)

Since it would not be helpful for me (or any tutor) to use a method you know nothing about, I think it would be best for you to re-post your question and include either:

The method you would like to see; or
A list of methods you have learned so the tutors can pick one you can recognize.

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