Question

Помогите пожалуйста решить

Answer 1

Ответ:

Пошаговое объяснение:

x+(7-2x) = 10

x + 7 - 2x = 10

-x +7 = 10

-x = 10 - 7

x = -3

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3x + 5 = -4x + 19

3x + 4x = 19 - 5

7x = 14

x = 14 : 7

x = 2

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x + 3(1 - 2x ) = 23

x + 3 - 6x = 23

-5x + 3 = 23

-5x = 23 - 3

-5x = 20

x = -20 : 5

x = -4

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1/3x - 1 = 1/4(x + 4/5)

1/3x - 1 = 1/4x + 1/5

1/3x - 1/4x = 1/5 + 1

4/12x - 3/12x = 1 1/5

1/12x = 1 1/5

x = 1 1/5 : 1/12

x = 6/5 * 12

x = 72/5

x = 14 2/5

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(3x + 2)/4 - (2x - 1)/3 = 2   /*12

3(3x + 2) - 4(2x - 1) = 2*12

9x + 6 - 8x + 4 = 24

x + 10 = 24

x = 24 - 10

x = 14