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Mathematics
Madalyn Armstrong
13 March, 13:56
Use doubles minus one to solve 8'+7
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Kelsey Neal
13 March, 15:43
0
Well we have
8 + 7. The method used would be like thos
8 + 7
~2 (-1) + 10 + 7
~-2 + 10 + 7
~8 + 7
Double minus one is this here > (-1) + (-1) = - 1 - 1 = - 2 = 2 (-1)
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