Find a pair of numbers that have a sum of −3 and a difference of −7.

Question

Find a pair of numbers that have a sum of −3 and a difference of −7.

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Doris 5 years 2021-09-02T21:38:32+00:00 1 Answers 19 views 0

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  1. Nem
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    2021-09-02T21:39:47+00:00
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    Answer:

    x = -5 and y = 2

    Step-by-step explanation:

    You want to start by writing these two equations:

    x + y = -3

    and

    x – y = -7

    Then, you want to add the solutions to these two equations, like so:

    -3 + -7 = -10

    Then, to find the x value, because x > y, divide the answer by two:

    -10/2 = -5

    So, the x value is -5.

    With this information, you can figure out that the y value is 2.

    Check the answer:

    -5 + 2 = -3

    -5 – 2 = -7

    Hope this helped

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )