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12 March, 23:18

Find the value of x in the equation 2 x + 20 = 15 + 3 x.

A. 16

B. 1

C. - 5

D. 25

+4
Answers (1)
  1. 13 March, 00:55
    0
    The value of x is 5.

    2x + 20 = 15 + 3x

    Group like terms, change its signs.

    2x - 3x = 15 - 20

    -1x = - 5

    -1x/-1 = - 5/-1

    x = 5

    To check: substitute x by its value. x = 5

    2x + 20 = 15 + 3x

    2 (5) + 20 = 15 + 3 (5)

    10 + 20 = 15 + 15

    30 = 30
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