Evaluate the expression -4x + 15y. If x = 5, and y =-2

Question

Evaluate the expression -4x + 15y. If x = 5, and y =-2

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Nho 4 years 2021-08-21T15:08:46+00:00 2 Answers 8 views 0

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  1. thongdat2
    0
    2021-08-21T15:09:55+00:00
    Reply

    Answer:

    -50

    Step-by-step explanation:

    I am going to rewrite it to make it look cleaner.

    15y – 4x.

    x = 5 and y = -2

    15(-2) – 4(5) = -30 – 20 = -50

  2. niczorrrr
    0
    2021-08-21T15:10:17+00:00
    Reply

    Answer:

    =10

    Step-by-step explanation:

    Evaluate for x=5,y=2

    (−4)(5)+(15)(2)

    (−4)(5)+(15)(2)

    =10

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