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Sagot :

1a 6x9+6xX 1b 2,5xa+2,5x4 1c 12xX-12x3
= 54 + 6X = 2,5a + 10 = 12X - 36
1d 8x6,1+8xX 1e 3x5+3xX 1d 5xX-5x4
= 48.8+8X = 15+3X = 5X-20

j’essaie de te faire l’ex 2

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