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30 December, 00:28

Y+z-yz; use y=7, and z=-7

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Answers (2)
  1. 30 December, 00:38
    0
    49. 7+7-7*7 then equals 49
  2. 30 December, 00:53
    0
    49

    Step-by-step explanation:

    Substitute all values into the expression.

    7 + (-7) - (7 (-7))

    =7-7+49

    =49
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