Предмет: Математика, автор: kshhshsnsnns12

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Автор ответа: vaperky

0

4(7-5x) -(12 -20 x)= 28 - 20x-12+20x =16

Автор ответа: be7palova2107

0

28-20х-12+20х=16
6х-2у-5х+2у=х
6х+12у-6х-3у=9у
20х+5у-2х+2у=18х+7у

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Hondas

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