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9 October, 04:40

Determine if the ordered pair (6,-6) is a solution of the system of equations.

4x+3y=6

-6x-2y=-24

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Answers (2)
  1. 9 October, 05:32
    0
    Change x with 6 and y with - 6

    4x+3y=6

    4*6+3 * (-3) = 24-18=6

    -6x-2y=-24

    -6*6-2 * (-6) = - 36+12=-24

    answer is yes
  2. 9 October, 07:32
    0
    4x + 3y = 6 ⇒ - 24x - 18y = - 36

    -6x - 2y = - 24 ⇒ - 24x - 8y = - 96

    -10y = 60

    -10 - 10

    y = - 6

    4x + 3 (-6) = 6

    4x - 18 = 6

    + 18 + 18

    4x = 24

    4 4

    x = 6

    The orderd pair (6, - 6) is a solution of the system of equations.
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