Автор - privetsasedpachiny

Решите уравнения:
1. 1,7 |x|+4,9=10
2. |9x-18|=27
3. |15x-10|=5
4. |8x-6|=14

Ответ

Автор - trscott

Ответ:


Пошаговое объяснение:

1. 1,7 |x|+4,9=10

|x| = 5,1/1,7 = 3

x₁ = 3, x₂=-3

2. |9x-18|=27

9x₁-18 = 27

x₁ = 5

9x₂-18 = -27

x₂ = -1

3. |15x-10|=5

15x₁-10 = 5

x₁ = 1

15x₂-10 = -5

x₂ = 1/3

4. |8x-6|=14

8x₁-6 = 14

x₁ = 20/8=5/2 = 2,5

8x₂-6= -14

8x₂ = -8

x₂ = -1

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