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18 November, 10:33

Which order pairs in the form (x, y) are solutions to the equation 7x - 5y = 28?

Select each correct answer.

(-1, - 7)

(-6, - 14)

(4,10)

(7,9)

+3
Answers (1)
  1. 18 November, 10:36
    0
    (-1, - 7) True

    (-6, - 14) True

    (4,10) False

    (7,9) False

    Step-by-step explanation:

    Problem One

    1. Multiply the numbers

    7 (-1) - 5 (-7) = 28

    2. Calculate

    -7+25=28

    3. Check the equality

    28=28

    True

    Problem Two

    1. Multiply the numbers

    7 (-6) - 5 (-14) = 28

    2. Calculate

    -42+70=28

    3. Check the equality

    28=28

    True

    Problem Three

    1. Multiply the numbers

    7 (4) - 5 (10) = 28

    2. Cancel equal terms

    28=-50=28

    3. check for equality

    -50=0

    False

    Problem Four

    1. Multiply the numbers

    7 (7) - 5 (9) = 28

    2. Subtract the numbers

    49-45=28

    3. Check for equality

    4=28

    False
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