Решить, выражение: -1,4*(5х-3у)+4,5*(-6х-7,8у), -3,5*(4х-2у)+2,4*(-3х-5,2у)
Даниил20061605
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26.07.2019 12:50
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3
-14х+7у-7.2х-12.48у=21.2х-5.48у