Решите уравнения!!!! а) 2x-1,3+1,5=7,2 б) 5x-3,3+1,7=7,4 - №6723890

Решите уравнения!!!!
а) 2x-1,3+1,5=7,2
б) 5x-3,3+1,7=7,4
- Предмет:
  Математика
- Автор:
  belle
- 6 лет назад

Ответы 1

а) 2x +0,2 =7,22x=7,2-0,22x=7x=7:2х=3,5------------б) 5х - 1,6=7,45х=7,4 +1,65х =9х=9 : 5х =1,8--------------------
- Автор:
  orion
- 6 лет назад
- 0
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