Help! Show work please?

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  • Will H
    Lv 7
    6 years ago
    Favorite Answer

    ∟AEC = 2x + 40

    ∟CEB = x + 20

    ∟AEC + ∟CEB = 180° i.e. straight line AB

    2x + 40 + x + 20 = 180°

    3x + 60 = 180°

    3x = 120°

    x = 40°

  • 6 years ago

    AEC + CEB = AEB = 180 degrees ( Straight line angle)

    Hence

    2x + 40 + x + 20 = 180

    3x + 60 = 180

    3x = 120

    x = 40 degrees .

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