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OpenStudy (anonymous):
Which system has (-2, -2) as the solution? A) 4x + 6y = -12 2x + 3y = 9 B) x + y = -1 4x + 4y = -4 C) x - 4y = -8 2x - 3y = -16 D) x - y = -2 3x - y = 0 E) x + y = -4 -3x + 2y = 2
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OpenStudy (anonymous):
substitute in each and see where equality is correct.
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