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Bonjour,

Quasi illisible !!! Je ne suis pas sûre de bien lire ...

c. 1/3x + 3/2x = 2x + 1/4

4/12x + 18/12x = 24/12x + 3/12

4x + 18x = 24x + 3

4x + 18x - 24x = 3

- 2x = 3

x = - 3/2

d. 2x - 1 = 5x - 3

2x - 5x = - 3 + 2

- 3x = - 1

x = 1/3.