Question

Решите уравнения пожалуйста ​

Answer 1

Ответ:

Пошаговое объяснение:

1)

4*(2x - 1) = 3*(3x + 5)

8x - 4 = 9x + 15

9x - 8x = -4 - 15

x = -19

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2)

3*(5 - 2y) = 2*(4 + 2y)

15 - 6y = 8 + 4y

4y + 6y = 15 - 8

10y = 7

y = 7:10

y = 0,7

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3)

3*(6x - 3) = 5*(2x + 7)

18x - 9 = 10x + 35

18x - 10x = 35 + 9

8x = 44

x = 44:8

x = 5,5

============

4)

-3*(5 + 2y) = 4*(3 - 3y)

-15 - 6y = 12 - 12y

12y - 6y = 15+12

6y = 27

y = 27:6

y = 4.5

===============

5)

5*(3x + 4) = 2*(8x - 1)

15x + 20 = 16x - 2

16x - 15x = 20 + 2

x = 22

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2y + 9 = 2*(5 - 3y)

2y + 9 = 10 - 6y

2y + 6y = 10 - 9

8y = 1

y = 1:8

y = 0,125