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my homework do it

Name: Anonymous 2009-11-25 9:03

Prove by induction that each positive integer n ≥ 8 can be represented in the form
n = 3a + 5b, where a and b are non-negative integers.

Name: Anonymous 2009-11-25 12:55

>>4
so n-3 = 3(a-1) + 5b

how is it clear a-1 is never negative for n>=11?

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