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23 September, 03:48

Which of the following ordered pairs is a solution to the equation 2x-7y=20?

A) (-2,3)

B) (-3,2)

C) (0,10)

D) (3,-2)

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Answers (2)
  1. 23 September, 04:16
    0
    Substitute each coordinate into the equation.
  2. 23 September, 04:44
    0
    (3,-2) is the solution

    Step-by-step explanation:

    2x-7y=20

    To find the ordered pairs that is a solution to the equation, we plug in each ordered pair and check whether it satisfies the given equation

    A) (-2,3)

    2 (-2) - 7 (3) = 20

    -4 - 21 = 20

    -25 = 20 (Does not satisfies the given equation)

    B) (-3,2)

    2 (-3) - 7 (2) = 20

    -6 - 14 = 20

    -20 = 20 (Does not satisfies the given equation)

    C) (0,10)

    2 (0) - 7 (10) = 20

    0 - 70 = 20

    -70 = 20 (Does not satisfies the given equation)

    D) (3,-2)

    2 (3) - 7 (-2) = 20

    6 + 14 = 20

    20 = 20 (satisfies the given equation)
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