Предмет: Математика, автор: полина967

решите уравнение пожалуйста!!!!Очень надо!!!

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Автор ответа: SimonRG

0,4х-1,2=2+0,5х-2,5
0,4х-0,5х=2-2,5+1,2
0,1х=0,7
Х=0,7:0,1
Х=7

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