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18 December, 18:47

If x = 3 and y = 7 evaluate the following expression:

20 - (3y - 4x)

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Answers (2)
  1. 18 December, 18:56
    0
    11

    Step-by-step explanation:

    20 - (3y-4x)

    replace the variables

    20 - (3*7-4*3)

    multiply

    20 - (21-12)

    subtract

    20 - (9)

    20-9

    answer=11
  2. 18 December, 19:05
    0
    17

    Step-by-step explanation:

    3x3=9 4x7=28 28+9=37 37-20=17
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