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Sagot :

JAYK0974

voilà, tout est dans l'image

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Bonjour,

9 + 5x = x - 7

5x - x = - 7 - 9

4x = -16

x = -16/4 = -4

x + 1/10 = 2x/4

x + 1/10 = 2/4x

x + 10 = 1/2x

10x + 1 = 5x

10x - 5x = -1

5x = -1

x = -1/5

11x + 3 = 8x + 7

11x - 8x = 7 - 3

3x = 4

x = 4/3

5x + 1 = 6x - 3

5x - 6x = - 3 - 1

- x = -4

x = 4

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