X= -5 y=2 work out the VALUE if 3x + 4y

Question

X= -5 y=2 work out the VALUE if 3x + 4y

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Ngọc Hoa 6 months 2021-08-22T00:13:23+00:00 2 Answers 0 views 0

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    0
    2021-08-22T00:15:09+00:00

    Answer:

    I think the answer is -7

    because : 3(-5) + 4(2)

    -15 + 8

    = -7

    0
    2021-08-22T00:15:14+00:00

    3(-5) + 4(2)
    = -15 + 8
    = -7

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