Geometry

Angle ABC and ange DBE are vertical angles,the measure of angle ABC =3x+20, and the measure or angle DBE =4x-10. Write and solve an equation to find the measure of angle ABC and the measure of angle DBEin

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  1. since vertical angles are equal,

    3x+20 = 4x-10
    x = 30

    check:
    ABC = 110
    DBE = 110

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  2. UV=3c+29,VW=-2-4,UW=-4c

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  3. Bd Bisect ABC=(6×-10)° and m dbc = (2×+20)°

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