Предмет: Математика, автор: Andruha111

при каком значении переменной: значение выражения 2.5x+3(0.5x-1.8) равно -3.8

Ответы

Автор ответа: miron2077

2,5х+1,5х-5,4=-3,8
4х=-3,8+5,4
4х=1,6
х=1,6:4
х=0,4

Автор ответа: ann1885

2,5х+1,5х-5,4=-3,8
4х=-3,8+5,4
4х=1,6
х=1,6/4
х=0,4

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