Answer:
x = 80
Step-by-step explanation:
A straight line has an angle of 180 degrees.
You know the 75 degrees so you take it away by doing this
180 -75= 105 then you do
105-25= 80
4x= 4 ×20.
4x+25+75= 180
4x +100= 180
4x = 80
x = 20°
4(20)+25= 80+25= 105°
