Homework 15 Name:
All of your work must be hand-written. Please scan homework into pdf files,
and submit pdf files to the Moodle.
Important: Show your work. No hand-written work, no credit.
Use the echelon method to solve each system of two equations in two unknowns
1. 4x+y=9
3x-y=5
2. 2x+7y=-8
-2x+3y=-12
3. -3x+y=4
2x-2y=-4
Use the echelon method to solve each system of two equations in two unknowns.
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