Помогите решить уравнение 1)

Помогите решить уравнение
1) 84а+25а+7=443
2)4(9+7х)+21=393
3)486:(5х+2)=18
4)5(14+в)+6в=158
- Предмет:
  Математика
- Автор:
  destiney
- 6 лет назад

Ответы 2

Все решения на фотографии
- Автор:
  tyler158
- 6 лет назад
- 0
84а+25а+7=44384а+25а=443-7109а=436а=436:109а=44(9+7х)+21=39336+28х+21=39328х=393-21-3628х=336х=336:28х=12486:(5х+2)=18---(5х+2)-возьмем как делитель,тогда5х+2=486:185х+2=275х=27-25х=25х=25:5х=55(14+в)+6в=15870+5в+6в=15811в=158-7011в=88в=8
- Автор:
  carmen70
- 6 лет назад
- 0
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Помогите решить уравнение 1) 84а+25а+7=443 2)4(9+7х)+21=393 3)486:(5х+2)=18 4)5(14+в)+6в=158

Ответы 2

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Помогите решить уравнение
1) 84а+25а+7=443
2)4(9+7х)+21=393
3)486:(5х+2)=18
4)5(14+в)+6в=158