Предмет: Математика, автор: mickevicroman74

(1)5x-18=3x (2)-7x+20=6 (3)10x-9=17+6x

Ответы

Автор ответа: vesqe19

Ответ:

1)9

2)2

3)6,5

Пошаговое объяснение:

1)2x=18

x=9

2)7x=14

x=2

3)4x=26

x=6,5

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