Sum of two natural no.Is 21 and their difference is 11 find the no.
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the numbers are 16 and 5
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let the numbers be x and y
x+y=21
x=21-y
x-y=11
21-y-y=11
10=2y
y=5
x=21-y
x=21-5
x=16
x+y=21
x=21-y
x-y=11
21-y-y=11
10=2y
y=5
x=21-y
x=21-5
x=16
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