7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m – 0.8)

Question

7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m – 0.8)

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Gabriella 4 weeks 2021-12-29T07:00:06+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-12-29T07:01:24+00:00

    Answer :

    m = 13.4/4.65

    Step by step :

    7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m – 0.8)

    7.8 + 2.75m + 0.8 = -6.4m + 4.5m – 4.8

    2.75m + 6.4m – 4.5m = -7.8 – 0.8 – 4.8

    4.65m = 13.4

    m = 13.4/4.65

    0
    2021-12-29T07:01:27+00:00

    Answer:

    B

    Step-by-step explanation:

    She is incorrect because when substituting 2 for m the result was a false statement.

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45:7+7-4:2-5:5*4+35:2 =? ( )