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What makes 1, 2,5, and 8 using -2, 5, 3, and -7?

 Oct 13, 2016
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5 · 3 - (-2 · -7)  =  15 - (14)  =  1

(-7 - 5) / (-2 · 3)  =  -12 / -6  =  2

5 / ( 3 · -2 - -7 )  =  5 / ( -6 + 7 )  =  5 / 1  =  5

-(-7) - ( 3 · -2 + 5 )  =  7 - ( -6 + 5 )  =  7 - (-1)  =  8

 Oct 13, 2016

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