8.1 matrix

IHey guys today lets do some system of linear equations using Gaussian elimination!

Steps:

1.Write the augmented matrix of the linear equations 

2.use elementary row operations to rewrite the matrix in row-echelon form

3. Write the linear equations corresponding to the matrix in row-echelon form,

4. Use back-substitution to find the other variables

Now, are you ready for some problems?

Here are the two examples:

I pulled these examples from the practice problems, so you can check it out in miss v's math land!