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nasty-shy [4]
3 years ago
13

In quadrilateral ABCD, AE=x+6 and BE=3x-18 For what value of x is ABCD a rectangle?

Mathematics
1 answer:
Tanya [424]3 years ago
3 0
  x + 6 = 3x - 18
- x          - x
       6 = 2x - 18
  + 18        + 18
     24 = 2x
      2      2
     12 = x

The answer is C.
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