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Enzorizeteroydwkm
@Enzorizeteroydwkm
May 2019
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Le 11 et Le 12 svp merci d'avance
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blondinetteoceane88
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Bonsoir
Exercice 12:
3x-7=5
3x=5+7
3x=12
x=12/3
x=4
9=7x-19
-7x=-19-9
-7x=-28
x=-28/-7
x=4
2x+17=5x+2
2x-5x=2-17
-3x=-15
x=-15/-3
x=5
9x-3=7x+5
9x-7x=5+3
2x=8
x=8/2
x=4
l'intrus est donc 2x+17=5x+2
Exercice 11
8x+7=3x+22
8x-3x=22-7
5x=15
x=15/5
x=3
9x-6=2x+17
9x-2x=17+6
7x=23
x=23/7
x≈3.3
donc elles n'ont pas les mêmes solutions
1 votes
Thanks 1
enzorizeteroydwkm
Merci bcp
blondinetteoceane88
de rien
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Svp aider moi c'est pour un dm de math c'est le dernier exercice et je n'arrive pas
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Verified answer
BonsoirExercice 12:
3x-7=5
3x=5+7
3x=12
x=12/3
x=4
9=7x-19
-7x=-19-9
-7x=-28
x=-28/-7
x=4
2x+17=5x+2
2x-5x=2-17
-3x=-15
x=-15/-3
x=5
9x-3=7x+5
9x-7x=5+3
2x=8
x=8/2
x=4
l'intrus est donc 2x+17=5x+2
Exercice 11
8x+7=3x+22
8x-3x=22-7
5x=15
x=15/5
x=3
9x-6=2x+17
9x-2x=17+6
7x=23
x=23/7
x≈3.3
donc elles n'ont pas les mêmes solutions