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Sagot :

Explications étape par étape:

1a x = - 15

1b. x = - 15

1c. x = 15

1d. x = 5

1e. x = 14

1e. x = - 6

2a x = 0

2b x = 7/8

2c. x = - 3

2d. x = 2

2e. x = 5

3a. x = - 8/ 5

3b. x = 5

3c. x = 5/3

3d. x = 9/4

3e. x = 5/4

3f. x = 8

3g x = - 1

4a x = 0

4b. x = 3/5

4c. x = 0

4d. x = - 5/3

4e. x = - 1/2

4f. x = - 23/5

5 a. x = 20/3

5b. x = 18

5c. x = - 52/27

5d. x = 31/308

5e. x = 147/20

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