Evaluate —2y – 3x for x = 1 and y= -2. The value of the expression is

Question

Evaluate
—2y – 3x for x = 1 and y= -2.

The value of the expression is

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Tryphena 5 months 2021-08-25T19:22:11+00:00 1 Answers 2 views 0

Answers ( )

    0
    2021-08-25T19:23:33+00:00

    Answer:

    1

    Step-by-step explanation:

    Given

    – 2y – 3x ← substitute x = 1 and y = – 2 into the expression

    = – 2(- 2) – 3(1)

    = 4 – 3

    = 1

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