January 2021 0 49 Report
Bonjour ::::::: Résoudre ::::: Exercice 1 = (-3x + 7 ) ( 7x - 14) = 0 ::::::::::::::::: Exercice 2 = (11 x - 21) ( -12 - 6) = 0 :::::::::::::: Exercice 3 : résoudre chaque système par substitution d'une inconnue :::::::::::: a) 3x + y = 8 :::::: 5x + 4y = 18 :::::::: b) 7x - y = - 33 ::::: -3 x + 5y = 37 ::::::::::::::::::::::::::: MERCI
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