Предмет: Алгебра, автор: evsejulana

реши систему методом постановки
срочно надо

Приложения:

Ответы

Автор ответа: dianabystrickaa5
0

Ответ:

вот если не понятно пиши

Приложения:
Автор ответа: fev1792
0

Ответ:

\left \{ {{-x-2y+1=4} \atop {x=-9-y}} \right. \\\left \{ {{-(-9-y)-2y+1=4} \atop {x=-9-y}} \right.\\

Решим 1 уравнение системы.

-(-9-y)-2y+1=4

9+y-2y=4-1

-y=3-9

-y=-6

y=6

Если y=6, то x= -9-6 = -15

Ответ:

x= -15; y = 6

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People need to eat food. There are many kinds of food that you can eat. Your diet is all of the food
that you eat. Some food is healthy. Some food is not healthy. Healthy food is good for you. It
helps you stay strong and live a l ong time.

What kind of food do you eat during the day?
1. ___________________________________________________________________
2. ___________________________________________________________________
3. ___________________________________________________________________
Write three foods that are healthy:
1. __________________________________________________________________
2. __________________________________________________________________
3. __________________________________________________________________
Write three foods that are NOT healthy:
1. __________________________________________________________________
2. _________________________________________________________________
3. ___________________________________________________________________
What kind of food is popular in your home country?
1.___________________________________________________________________
2.___________________________________________________________________
3.___________________________________________________________________
What advice can you give to a person to live long and healthy life?
_______________________________________________________________________________
_______________________________________________________________________________
_________________________________________