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8 February, 19:09

What is the solution of 4x - 30 ≥ - 3x + 12?

(1) x ≥ 6 (3) x ≥ - 6

(2) x ≤ 6 (4) x ≤ - 6

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Answers (2)
  1. 8 February, 21:22
    0
    First, let's add 30 to both sides:

    4x - 30 + 30 ≥ - 3x + 12+30

    4x ≥ - 3x + 42

    Now, let's add 3x to both sides

    4x + 3x ≥ - 3x+3x + 42

    7x ≥ 42

    Let's divide both by 7:

    x ≥ 6
  2. 8 February, 22:30
    0
    4x - 30 ≥ - 3x + 12

    + 3x + 3x

    7x - 30 ≥ 12

    + 30 + 30

    7x ≥ 42

    7 7

    x ≥ 6

    The answer is (1). The solution set is (6, ∞).
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