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Mathematics, 22.01.2021 21:00 bigboy43

If x + 2y = -6 and 5x + 9y = 7 are true equations, what would be the value of
-4x – 7y?

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If x + 2y = -6 and 5x + 9y = 7 are true equations, what would be the value of
-4x – 7y?...
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