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18 March, 02:54

Is each pair of systems equivalent? Explain.

3x - 4y = - 6 6x - 8y = 12

2x + 5y = 1 6x + 15y = 3

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  1. 18 March, 03:17
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    No. 3x - 4y = - 6 is not equal to 6x - 8y = 12. If you multiplied the first equation by 2, it would be 6x - 8y = - 12, not 6x - 8y = 12. As for the second pair, if you multiply 2x + 5y = 1 by 3, it would be 6x + 15 = 3. So the second pair are equal.
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