Respuesta :
Answer:
x =144
Step-by-step explanation:
A straight line is 180 degrees
x+ x/4 = 180
Change 1 to 4/4 to get a common denominator
4/4x +x/4 = 180
Combine like terms
5/4x = 180
Multiply by 4/5 on each side to isolate x
4/5 * 5/4 =180 * 4/5
x =144