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21 November, 07:17

Which ordered pairs in the form (x, y) (x, y) are solutions to the equation 3x-4y=213x-4y=21? select each correct answer. (11, 3) (11, 3) (-1, - 6) (-1, - 6) (-3, 3) (-3, 3) (7, 0) ?

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  1. 21 November, 08:49
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    3x - 4y = 21

    Its just a matter of subbing in ur answer choices to see which ones make this equation true.

    (11,3)

    3 (11) - 4 (3) = 21

    33 - 12 = 21

    21 = 21 (correct)

    (-1,-6)

    3 (-1) - 4 (-6) = 21

    -3 + 24 = 21

    21 = 21 (correct)

    (7,0)

    3 (7) - 4 (0) = 21

    21 = 0 = 21

    21 = 21 (correct)

    so ur answer is : (11,3), (-1,-6), (7,0)
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