Question

Use Guauss-jordan elimination to solve the following system of equations.

Answer 1

Answer:

(-1,2)

Step-by-step explanation:

Write out the system in a matrix

3  5     7

2(6  -1    -8 ) Multiply row two by five and add to row one.

1  0  -1 Multiply row 1 by -6 and add it to row two.

6  -1  -8

1 0 -1

0 -1 -2 Multiply bottom row by -1

1 0 -1

0 1 2

x=-1, y=2