Respuesta :

musiclover10045

The two angles need to add to 180 degrees.

5a + 5. + 2a + 35 = 180

Combine like terms:

7a +40 = 180

Subtract 40 from both sides:

7a = 140

Divide both sides by 7:

a = 140 / 7

a = 20

kmaalrtbin

Answer:

180

Step-by-step explanation: