Respuesta :

JennyTheBest813

Answer:

10

Step-by-step explanation:

If ABCD is a rectangle, then AB=CD and AC=BD.

  • AC=BD, so x+6=2x-4
  • Subtract, -x+6=-4
  • Subtract, -x=-10
  • Make positive, x=10

Check work:

  • 10+6=2(10)-4
  • 10+6=20-4
  • 16=16

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