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Review examples 2, 3, and 4 in section 8.4 of the text. How does the author determine what the first equation should be? What about the second

Review examples 2, 3, and 4 in section 8.4 of the text. How does the author determine what the first equation should be? What about the second equation? How are these examples similar? How are they different? Find a problem in the text that uses elimination method to solve a system of equations. Post the problem for your classmates to solve.

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