Respuesta :

3167972

Answer:

x = 5

Brainliest, please!

Step-by-step explanation:

90 + 39 + (7x + 16) = 180

7x + 145 = 180

7x = 180 - 145

7x = 35

x = 5

ma5007482

Answer:

x=5

Step-by-step explanation:

Sum of the angles in a triangle is 180.

7x +16 +39 +90= 180

7x + 125 = 180

7x = 180-145

7x=35

x=35/7

x=5