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Find the sum of all positive integers $n$ such that $1.2n-4.4<5.2$.

 Jun 28, 2020
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1.2n-4.4<5.2      add 4.4 to both sides

1.2n < 9.6     divide both sides by 1.2

n < 8             

       7+6 + 5 +4 +3 + 2+1 = .........

 Jun 28, 2020

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