Teacher/User Name: DEMO Name:__________________________
Practice Problems
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Period: ________ Date: ____________

 
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Solve:

1) What is the solution to the following augmented matrix?









-8 -1 -10 20 54 








-4 -6 -1 -9 -9 -123 
-5 -1 -1 11 -4 18 

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2) What is the solution to these equations?
-3x1+  x2- 9x3- 8x4 = -89
4x1- 3x2+ 17x3+ 9x4 = 132
3) What is the solution to the following augmented matrix?









-12 -10 -70 -300 








-6 -27 -98 
-4 -6 -32 -140 

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4) 
Find h and k such that the system represented by the augmented matrix below has
a) No Solution
b) Only one Solution
c) Many Solutions















16 


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