Respuesta :

darth666

Answer:

15

Step-by-step explanation:

8x-3+4x+3=180

12x=180

x=180/12

x=15

yathicha

Step-by-step explanation:

The Straight angle is an angle equal to 180 degrees.

So (8x - 3) + (4x + 3) = 180

8x - 3 + 4x + 3 = 180

12x = 180

x = 15

please give me a brainliest answer

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