Предмет: Математика, автор: koteika1mur

769 (1,2,3 пример)
Решите быстренько как-то

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Ответы

Автор ответа: гюйс

0

1) ..........=3х+у+х+4у=4х+5у

2) .........=х+6у-8х+7у=13у-7х

3) ...........=m+n-m+n=2n

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