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MathematicsMathematics
9 August, 23:28

What does x represent for these 4 problems?

1. - 2x = 10

2. ½x = 5

3. 5x = - 20

4. 9x = 36

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Answers (1)
  1. 9 August, 23:38
    0
    1.

    -2x = 10

    x = 10 / (-2)

    x = - 5

    2.

    1/2 x = 5

    x = 5 * 2

    x = 10

    3.

    5x = - 20

    x = - 20/5

    x = - 4

    4.

    9x = 36

    x = 36/9

    x = 4
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