# Algebra ll

Consider the system below.
{4x-2y=-12}
{3x-y=-3}

Solve the system by using a matrix equation.

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1. +4 -2 -12
+3 -1 -3
gauss jordan
see
http://www.gregthatcher.com/Mathematics/GaussJordan.aspx

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posted by Damon
2. I appreciate the help thank you, Damon

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3. x = 3, y = 12

Step 2: Enter the values for your matrix, and press the "Solve" button.

Divide row1 by 4
1 -1/2 -3
3 -1 -3

Add (-3 * row1) to row2
1 -1/2 -3
0 1/2 6

Divide row2 by 1/2
1 -1/2 -3
0 1 12

Add (1/2 * row2) to row1
1 0 3
0 1 12

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posted by Damon
4. You are welcome.

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posted by Damon

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