Respuesta :

wegnerkolmp2741o

Answer:

A 21

Step-by-step explanation:

The angles are vertical angles, so

64 = 3x+1

Subtract 1 from each side

64-1= 3x+1-1

63 = 3x

Divide by 3

63/3 = 3x/3

21 =x

The angle x is in is equivalent to 64°.

So, set 3x + 1 = 64

63 = 3x

x = 21

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