Предмет: Алгебра, автор: Аноним

Можно просто ответ.
1)Решите уравнение: 0,9a+0,2=-7
2)Решите уравнение: 5(d-7)+21=-29

Ответы

Автор ответа: няяяяяяяяяяяяяяша

1

Ответ:

1) а=-8

2)d=-3

Объяснение:

0,9a+0,2=-7

0,9а=-7-0,2

0,9а=-7,2

а=-7,2:0,9

а=-8

5(d-7)+21=-29

5(d-7)=-29-21

5(d-7)=-50

d-7=-50:5

d-7=-10

d=-10+7

d=-3

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загубилися у часі

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за британськими правилами

закінчилась

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була заборонена

організувати перший турнір

найстаріші у світі майданчики для гольфу

повинні поводитись, як джентльмени

не популярний спорт

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