Respuesta :

ciqarz

Answer:

B. 19

Step-by-step explanation:

A triangle has three angles that add up to 180°.

86 + 32 = 118°

180 - 118 = 62°

The third angle has to equal 62°.

3x + 5 = 62°

3x = 57

x = 19°

Hope that helps.

rosh18

Answer:

[tex]86 + 32 + 3x + 5 = 180 \\ 123+ 3x = 180 \\ 3x = 57 \\ x = 19[/tex]