Предмет: Математика, автор: Vera1999Novikova

1) 7(х-5)=63 2) 23+14х-13х=72

Ответы

Автор ответа: sanone95

0

1) 7x-35=63
7x= 63+35
7x=98
x=14

2) 1x=72-23
x=49

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