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MERI132001
@MERI132001
September 2021
1
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упростите выражение : 2y-(y-(y-(y+7)))
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malira
2y-(y-(y-(y+7)))=2y-(y-(y-y-7))= 2y-(y-y+y+7)= 2y-y+y-y-7=у-7
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