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25 July, 16:31

Identify the mistake:

3 (x + 9) = 6x + 45

3x + 27 = 6x + 45

9x + 27 = 45

9x = 18

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Answers (2)
  1. 25 July, 18:50
    0
    He added 6x when it was moved across instead of subtracting 6x. so it should say - 3x = 18 not 9x=18

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  2. 25 July, 20:11
    0
    Should have subtracted 3x
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