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16 November, 19:31

Solve the system equations and choose the correct ordered pair

3x+2y=12

6x+3y=21

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Answers (1)
  1. 16 November, 19:36
    0
    (2, 3).

    Step-by-step explanation:

    3x+2y=12

    6x+3y=21 Multiply the first equation by 3 and the second by 2:

    9x + 6y = 36

    12x + 6y = 42 Subtract:

    -3x = - 6

    x = - 6/-3 = 2.

    Plug x = 2 into the first equation:

    3 (2) + 2y = 12

    2y = 12 - 3 (2)

    2y = 6

    y = 3.
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