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Sagot :

VINS

bonjour

(11x+8)(7x-28)=(7x-28)(12x+4)

( 11 x + 8 ) ( 7 x - 28 ) - ( 7 x - 28 ) ( 12 x + 4 ) = 0

( 7 x - 28 ) ( 11 x + 8 - 12 x - 4 ) = 0

( 7 x -28 ) ( - x + 4 ) = 0

x = 28/7 ou 4

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