3. Let’s tell and write the answers as quickly as possible a) If x = 2y, then x + y in terms of y = b) If x = 3y, then 2xy in term

Question

3. Let’s tell and write the answers as quickly as possible
a) If x = 2y, then x + y in terms of y =
b) If x = 3y, then 2xy in terms of y
c) If a = 2b and b = 3, then a + b
= …
d) If p = 3q and q = 2, then p-q​

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Kim Chi 4 years 2021-08-20T15:47:47+00:00 1 Answers 14 views 0

Answers ( )

  1. thuhuong
    0
    2021-08-20T15:49:29+00:00
    Reply

    Answer:

    • 3y
    • 6y²
    • 9
    • 4

    Step-by-step explanation:

    a) If x = 2y, then x + y

    In terms of y

    2y + y

    3y

    b) If x = 3y, then 2xy

    In terms of y

    2(3y)(y)

    6y²

    c) If a = 2b and b = 3, then a + b

    a + b

    2b + b

    2(3) + 3

    9

    d) If p = 3q and q = 2, then p-q​

    p-q

    3q – q

    2q

    4

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