maros9446 maros9446
  • 08-11-2020
  • Mathematics
contestada

Answer this please ​

Answer this please class=

Respuesta :

gardnerdanj gardnerdanj
  • 08-11-2020

Answer:

x = 48

Step-by-step explanation:

We now that supplementary angles (as is the case for a straight line) add up to 180 degrees.

3x - 12 + x = 180

4x = 192

x = 48

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