According to the properties of inequality, when should the inequality symbol be reversed when solving a two-step inequality in the form belo

Question

According to the properties of inequality, when should the inequality symbol be reversed when solving a two-step inequality in the form below?

a x + b greater-than c
when a is positive
when a is negative
when b is positive
when b is negative

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Ngọc Hoa 4 years 2021-08-04T01:11:56+00:00 2 Answers 61 views 0

Answers ( )

  1. vankhanh
    0
    2021-08-04T01:13:10+00:00
    Reply

    Answer:

    b

    Step-by-step explanation:

  2. Dulcie
    0
    2021-08-04T01:13:46+00:00
    Reply

    Answer:

    • B. when a is negative

    Step-by-step explanation:

    Inequality given:

    • ax + b > c

    When solving we do steps:

    • ax > c – b
    • x > (c – b)/a

    At the second step both sides divided by a.

    When a is positive the inequality symbol remains as is, when a is negative we have to divide both sides by -1 as well. This will reverse the inequality symbol.

    Correct answer choice is B.

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