Respuesta :

wegnerkolmp2741o

Answer:

x = 20

Step-by-step explanation:

The sum of the opposite interior angles of a triangle is equal to the exterior angle

x + 2x+10 = 70

Combine like terms

3x+10 = 70

Subtract 10 from each side

3x+10-10 = 70-10

3x = 60

Divide each side by 3

3x/3 = 60/3

x = 20

[tex]x + 2x+10 = 70\\3x+10 = 70\\3x+10-10 = 70-10\\3x = 60\\3x/3 = 60/3\\x = 20[/tex]

Final answer: [tex]x=20[/tex]