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10 December, 06:13

Use the elimination method to solve the system of equations. choose the correct ordered pair

10x + 2y = 22

3x - 4y = - 21

A. (1, 6)

B. (2, 5)

C. (5, 4)

D. (3, 8)

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Answers (1)
  1. 10 December, 07:18
    0
    If we multiply the first equation by 2 and add we eliminate y and get

    23x = 23

    x = 1

    3 (1) - 4y = - 21

    4y = 3 + 21 = 24

    y = 6

    answer is Choice A
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