Geometry
posted by Amber on .
Angle ABC and ange DBE are vertical angles,the measure of angle ABC =3x+20, and the measure or angle DBE =4x10. Write and solve an equation to find the measure of angle ABC and the measure of angle DBEin

since vertical angles are equal,
3x+20 = 4x10
x = 30
check:
ABC = 110
DBE = 110 
UV=3c+29,VW=24,UW=4c

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