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12-05-2016
Mathematics

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The sum of two consecutive interferes is at least 7 (n and n + 1 represent two interferes

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12-05-2016

consecutive integers are 1 apart so they are n and n+1

their sum (add) is at least 7
sum>7

sum means add
n+n+1>7
2n+1>7
minus 7 both sides
2n>6
divide 2
n>3

the smaller number mist be at least 3, (making the bigger number at least 4)

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