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pomade
@pomade
January 2021
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Calculer :
•2 ( -23-7 ) - 2 ( 3y+11 )
•5 -( 2y-5 )
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piubellacosa
I)
2x(-23) - 2x7 - 2x3y+ 2x11
-46 - 14 - 6y + 22
-46 - 14 + 22 - 6y
-38 -6y
II) (Même principe pour la seconde )
-10y + 25
Ici les signe ( + et * ) sont differents car comme il ya un - devant la parenthése on inverse les signe a l'interrieur de celle-ci donc 2y devient -2y et -5 devient 5 .
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Lista de comentários
2x(-23) - 2x7 - 2x3y+ 2x11
-46 - 14 - 6y + 22
-46 - 14 + 22 - 6y
-38 -6y
II) (Même principe pour la seconde )
-10y + 25
Ici les signe ( + et * ) sont differents car comme il ya un - devant la parenthése on inverse les signe a l'interrieur de celle-ci donc 2y devient -2y et -5 devient 5 .