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22 November, 22:56

Substitute 7 for x and evaluate the expression below. 9x - 2x

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Answers (2)
  1. 22 November, 23:19
    0
    49

    Step-by-step explanation:

    Multiply 9 by 7 which is 63 then subtract by 14 which is 7 and 2 muliplied. The answer is 49.
  2. 22 November, 23:25
    0
    49

    Step-by-step explanation:

    9x - 2x = 7x = 7*7 = 49

    or

    9x - 2x = 9*7 - 2*7

    = 63 - 14

    = 49
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