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October 30th, 2017, 02:09 PM   #1
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From: israel

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i didnt understand how to solve it-
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October 30th, 2017, 08:31 PM   #2
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What have you done so far?
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October 31st, 2017, 08:59 AM   #3
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Do you know what a "matrix" is? Do you know what an "augmented matrix" is? Nothing you said here indicates that you do!

How is an "augmented matrix" associated with an equation? Also do you see that (b) and (d) are essentially the same question?
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