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Sagot :

Bonjour

E = 4 ( 1 - 7x ) + 3 ( x - 2 )

E = 4 * 1 - 4 * 7x + 3 * x - 3 * 2

E = 4 - 28x + 3x - 6

E = 3x - 28x - 6 + 4

E = -25x - 2

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