Example of Three Consecutive Odd Integers Problem

         Two consecutive odd integers have a total of 40. Find the integers.
Find SMALLER
Find LARGER
Let S=SMALLER
Let L=LARGER
Given S+L=40
Given L-S=2
L-(40-L)=2   Comment: Substitute 40-L for S in L-S=2
Solution L=21  Comment
Solution S=19  Substitute L=21 into S=40-L
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