Which of the following values of y will result in a true statement when substituted into the given equation? y + 4.2 = 3.4

Question

Which of the following values of y will result in a true statement when substituted into the given equation?

y + 4.2 = 3.4

A. y = -0.8
B. y = 2.2
C. y = 4.3
D. y = 5.2

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Nem 5 years 2021-08-10T14:08:33+00:00 2 Answers 22 views 0

Answers ( )

  1. thachthao
    0
    2021-08-10T14:09:34+00:00
    Reply

    Answer:

    A. -0.8

    Step-by-step explanation:

    non of the other answers will work because they are positive.

  2. vankhanh
    0
    2021-08-10T14:09:56+00:00
    Reply

    Answer:

    A, y = -0.8

    Step-by-step explanation:

    To solve this, you have leave the y alone.

    Subtract 4.2 from both sides.

    y + 4.2 – 4.2 = 3.4 – 4.2

    y = 3.4 – 4.2

    y = -0.8

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