SOLUTION: solve the following system using Gauss-Jordan elimination -8x1 -4x2 = -32 2x1 + x2 =8

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Question 466167: solve the following system using Gauss-Jordan elimination
-8x1 -4x2 = -32
2x1 + x2 =8
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
%28matrix%282%2C3%2C+-8%2C-4%2C-32%2C2%2C1%2C8%29%29
~ %28matrix%282%2C3%2C+2%2C1%2C8%2C2%2C1%2C8%29%29, after -R1/4.
~%28matrix%282%2C3%2C+2%2C1%2C8%2C0%2C0%2C0%29%29, after -R1 + R2
~%28matrix%282%2C3%2C+1%2C1%2F2%2C4%2C0%2C0%2C0%29%29, after R1/2
The matrix is in reduced row echelon form. This says that the system is dependent, and the solution set is {(x, y)| x + y/2 = 4}.