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8 June, 10:26

Find the value of x in each of the following

a) 2x - 7 = 13

b) 3x + 4 = 25

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Answers (2)
  1. 8 June, 10:49
    0
    Step-by-step explanation:

    a) 2x - 7 = 13

    Solution:

    2x = 13 + 7

    2x = 20

    x = 20/2

    x = 10

    a) 3x + 4 = 25

    Solution:

    3x = 25 - 4

    3x = 21

    x = 21/3

    x = 17
  2. 8 June, 10:54
    0
    a) 10.

    b) 7.

    Step-by-step explanation:

    a) 2x - 7 = 13 Add 7 to both sides of the equation:

    2x - 7 + 7 = 13 + 7

    2x = 20

    x = 10.

    b) 3x + 4 = 25 Add - 4 to both sides of the equation:

    3x + 4 - 4 = 25 - 4

    3x = 21

    x = 7.
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