Respuesta :

Answer:

Answer is 6

Step-by-step explanation:

See it is equilateral so AB=AC=BC

Now we are given values of AB and AC, but they are equal so,

  • 22x-33 = 7x+57
  • 22x-7x = 57+33
  • 15x = 90
  • x= 15 / 90
  • x=6

Hope it helps

BYE

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