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zoga2003
zoga2003
23.10.2022 00:56 •  Математика

Решить уравнение! 1) -1,4(х--6)=7(4х+1,2) 2) 2,6(0,,4)=--3,9(1,2х--0,9) ,, надо!

👇
Ответ:
Tanya21105
Tanya21105
23.10.2022
1) -1,4(х-6)=7(4х+1.2)
Сократим обе части уравнения на 7
-0,2(х-6) = 4х+1,2
-0,2х + 1,2 = 4х + 1,2
4х-0.2х + 1,2-1,2
3,8х = 0
х = 0

2) 2,6(0,4х-1,4) = -3,9(1,2х-0,9)
Разделим обе части уравнения на 1,3
2(0,4х-1,4) = -3(1,2х-0,9)
0,8х - 2,8 = -3,6х + 2,7
0,8х + 3,6х = 2,7 + 2,8
4,4х = 5,5
х = 5,5/4,4
х = 1,25
4,4(37 оценок)
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Ответ:
ekaterrrrr
ekaterrrrr
23.10.2022
I think summer is the best season of all because it is warm, the nature is beautiful and we have great opportunities for rest. Summer is a time of holidays. We can go anywhere, spend our time near a river or a lake on fresh, green grass, swim in warm water, or climb mountains, play different games, ride a bicycle and so on.

I spend my summer holidays at my granny’s. There are many things there to do. What I did most of the time - I swam in the sea and sunbathed. Sometimes I made a fire with my friends at the seaside and cooked potatoes there. It was wonderful. We told anecdotes to each other, and did everything we wanted. I also got used to walk alone in the forest.

When August was coming to its end, I went on a small voyage by ship. The ship name was “Sevastopol”.

But this summer wasn’t for me only sugar and honey. I have passed through the graduating exams after school and entering exams in the university. So the bigger part of my summer vacations I spent sitting with the books. Of course, it was not interesting, but I’m glad that I did it because now I’m a student of the best university in our country.

4,6(45 оценок)
Ответ:
lolagrigoreva
lolagrigoreva
23.10.2022
I think summer is the best season of all because it is warm, the nature is beautiful and we have great opportunities for rest. Summer is a time of holidays. We can go anywhere, spend our time near a river or a lake on fresh, green grass, swim in warm water, or climb mountains, play different games, ride a bicycle and so on.

I spend my summer holidays at my granny’s. There are many things there to do. What I did most of the time - I swam in the sea and sunbathed. Sometimes I made a fire with my friends at the seaside and cooked potatoes there. It was wonderful. We told anecdotes to each other, and did everything we wanted. I also got used to walk alone in the forest.

When August was coming to its end, I went on a small voyage by ship. The ship name was “Sevastopol”.

But this summer wasn’t for me only sugar and honey. I have passed through the graduating exams after school and entering exams in the university. So the bigger part of my summer vacations I spent sitting with the books. Of course, it was not interesting, but I’m glad that I did it because now I’m a student of the best university in our country.

4,7(43 оценок)
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