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Sagot :

ROMANEED

Bonjour,

N'oublies pas la formule de politesse la prochaine fois ;)

11x-9 = 5x + 3

11x -5x = 9+3

6x = 12

x = 12/6

x = 2

7x + 27 = 12x-3

7x -12x = -3 - 27

- 5x = -30

- x = - 30/5

x = 6

-3x + 2(x + 7) = 0

- 3x + 2x + 14 = 0

- 3x + 2x = -14

- x = - 14

x = 14

5(x-6)=5

5x - 30 = 5

5x = 5 + 30

5x = 35

x = 35/5

x = 7

Bonne soirée.

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