December 2020 0 73 Report
aidez moi svp: Systèmes d'équations (desolé je ne peut pas mettre les accolade) 9 x − 5 y = 57 3 x + 6 y = −27 10 x + 4 y = 14 8 x − 5 y = 44 −10 x − 4 y = 20 4 x + 7 y = 19
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Responda
Bonjour, je suis en 4e j'ai pas compris ces expressions A=9x ( -2x-10 ) B=( 7x + 2 ) X 7x
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Aidez moi svp 3x + 16= -8 12+15x= -3+7 13-4= 15x - 7x 11+7= 5x
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