Question 1040916
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a + b = 21,   (1)
a - b = 11.   (2)

Add equations (1) and (2) (both sides). You will get

2a = 21 + 11 = 32,

hence, a = {{{32/2}}} = 16.

Then from (2) b = a-11 = 16-11 = 5.

<U>Answer</U>. The numbers ar 16 and 5.
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