They are: 14 and 4
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2(x+9)=56 2x+18=56 -18 -18 2x=18 x=9 check: 2(9+9)=56 2(18)=56 56=56 :)
The numbers are 4 and 14
The common factors of 56 and 18 are 1 and 2.
These are 4 numbers whose sum is 56. So their mean is 56/4 = 14
The factors of 18 are: 1, 2, 3, 6, 9, 18The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56The common factors are: 1, 2