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Sagot :

Bonjour,

- 6 * (5x + 3) = - 30x - 18

- 7 * (2x + 4) = - 14x - 28

3x * (5 - 4) = - 15x - 12x = - 27x

x * (10 - 3) = 10x - 3x = 7x.

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