Предмет: Математика, автор: RashYTISO

Решите уравнение 2,5х + 4 =9 1,7х - 2,1 =3 0,5-17=40,52 0,4х + 0,24х - 0,26=0,764

Ответы

Автор ответа: 005322
1

2,5х+4=9

2,5х=9-4

2,5х=5

х=5/2.5

х=2

1.7х-2.1=3

1,7х=3+2.1

1.7х=5.1

х=5.1/1.7

х=3

0.5-17=40.52

что принята за х?

0.4х+0.24х-0.26=0.764

0.4х+0.24х=0.764-0.26

0.64х=0.736

х=0.736/0.64

х=1.15

Автор ответа: 35454214577
1

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