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Louismarie77
@Louismarie77
April 2019
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Voici un exercice que j'ai beaucoup du mal a faire pourriez vous m'aidé svp?
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Styleyou
A) 7x - 4 -> x = 5
= 7.(5) - 4
= 35 - 4
= 31
b) 3x + 5 -> x = -7
= 3.(-7) + 5
= -21 + 5
= -16
c)
+ 6x - 8 -> x = 3
=
+ 6.(3) - 8
= 9 + 18 - 8
= 19
d) 3(2x - 6) - (-5x + 7) -> x = -2
= 3(2.(-2) - 6) - (-5.(-2) + 7)
= 3(-4 -6) - (10 + 7)
= 3(-10) - (17)
= -30 - 17
= -47
Essaye de faire les deux dernier tout seul, pour t’entraîner. Il te suffit de remplacer x et puis de calculer :)
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Bonsoir, je souhaiterais avoir une aide. Merci bcp
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Aider moi juste pour cette question ! merci =)
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Aider moi svp a faire tout les exos de la feuille merci pour tout
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Lista de comentários
= 7.(5) - 4
= 35 - 4
= 31
b) 3x + 5 -> x = -7
= 3.(-7) + 5
= -21 + 5
= -16
c) + 6x - 8 -> x = 3
= + 6.(3) - 8
= 9 + 18 - 8
= 19
d) 3(2x - 6) - (-5x + 7) -> x = -2
= 3(2.(-2) - 6) - (-5.(-2) + 7)
= 3(-4 -6) - (10 + 7)
= 3(-10) - (17)
= -30 - 17
= -47
Essaye de faire les deux dernier tout seul, pour t’entraîner. Il te suffit de remplacer x et puis de calculer :)