Respuesta :

eric3456789

Answer:

The answer x = 75

Step-by-step explanation:

A triangle's angles must add up to 180 degrees.

We already have 47 and 58 which is 105. 180 - 105 = 75.
180-47+58=75
That is because the total of a triangle is 180 and you should have to add the two numbers to find the value of the third one.