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33:

A) 9x

B) 2x

C) -3x

D) -11x

E) 28x

F) -8x

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EXERCICE 33 :

 

6x + 3x = 9x

11x - 9x = 2x

5x - 8x = - 3x

- 15x + 4x = - 11x

27x + x = 28x

- x - 7x = - 8x

 

EXERCICE 35 :

 

5x + 2x = 7x

5x - 2 = pas possible

5x² + 2x = pas possible

2x² - 5x² = - 3x²

5 + 2x² = ppas possible

5x - 2x = 3x

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