Question 200356
(4,6)............(7,8)..............(2x,2x)
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With  M  as  Midpoint,
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7-4  =3,,,,,7+3  =10,,,,,,,which  also  = 2x,,,,,so  x=5
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8-6=2,,,,,,8=2=10,,,,,,,which  also  =2x,,,,,,,so  x=5
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