Respuesta :

Answer:

x=40°

Step-by-step explanation:

(x-5)+(x+15)=90°

2x+10=90

2x=80

x=40°

Answer: x= 40⁰

Step-by-step explanation:

x+15+x-5=90

          2x= 90-10

             x= 80/2

             x= 40⁰