What is the easy way to learn a math section before a test?
1 answer:
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If x is the smaller one, and is odd, the next consecutive odd integer is x+2.
Check:
11(13) = 143
23 + 5(11 + 13) = 23 + 120 = 143, check
-3(-1) = 3
23 + 5(-3 + -1) = 3, check
Answer: 11,13 or -3,-1