Mathematics

7th -

8thgrade

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二元一次方程式的解

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15 questions

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  • 1. Multiple Choice
    45 seconds
    1 pt

    x+y=4

    當x=7時,y=?

    3

    11

    -3

    7/4

  • 2. Multiple Choice
    45 seconds
    1 pt

    x+2y=5

    當x=1時,y=?

    4

    2

    5

    3

  • 3. Multiple Choice
    45 seconds
    1 pt

    x+2y=3

    當x=5時,y=?

    -1

    1

    8

    -7

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