Answer:
ㄥBEC=70;ㄥABE=160
Explanation:
(x-5)+(3x-5)+90=180
x-5+3x-5+90=180
4x+80=180
4x=100
x=25
ㄥBEC=3*25-5=70
ㄥABE=180-(25-5)=160
8.1m questions
10.7m answers