Предмет: Математика, автор: artemcena2011

2) Приведите подобные слагаемые:
a) 3,7x + 2,8y – 5x + 4,9y=
б) 0,7c - 7а + 4c - 3=

Ответы

Автор ответа: kd9499640

1

а)

$3.7x + 2.8y - 5x + 4.9y = (3.7x - 5x) + (2.8y + 4.9y) = - 1.3x + 7.7y$

б) 0.7с -7а+4с-3=(0.7с+4с)-7а-3=4.7с-7а-3

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