Morgan is adding -12 +7. She writes the following -12 +7 = ? She wants to write – 12 as the sum of two integers so that the sum

Question

Morgan is adding -12 +7. She writes the following
-12 +7 = ?
She wants to write – 12 as the sum of two integers so that the sum of one of the integers and 7 is equal to 0. How could morgan write -12 to complete this problem? Enter the integers in the box

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Philomena 4 years 2021-08-23T02:44:40+00:00 1 Answers 120 views 0

Answers ( )

  1. ngocdiep
    0
    2021-08-23T02:46:07+00:00
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    Answer:

    x=-7

    Step-by-step explanation:

    -12+7+x=-12

    -12+7+x+12=-12+12 (add 12 to both sides)

    7+x=0(simplify)

    7+x-7=0-7(subtract 7 from both sides)

    x=-7

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