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Prancer32
@Prancer32
January 2021
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Bonjour j'aurais besoin pour les exercices 39 et 40 je n'arrive pas du tout à résoudre ces équations je ne comprends pas comment faire.
Merci
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totolekoala
Bonjour,
39)
a) 3x+2 = x - 10
soit
3x -x = -10 - 2
soit
2x = -12
x = -6
b) 2x-5 = 5x + 1
-6 = 3x
x = -2
40)
a) 3-7t = 3t+2
-10t = -1
t = 1/10
b) 5y-6 = -y +3
4y = 9
y = 9/4
bonne journée !
T.
1 votes
Thanks 1
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bonjour vous pouvez m'aider pour les exercices 37 et 39
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Lista de comentários
39)
a) 3x+2 = x - 10
soit
3x -x = -10 - 2
soit
2x = -12
x = -6
b) 2x-5 = 5x + 1
-6 = 3x
x = -2
40)
a) 3-7t = 3t+2
-10t = -1
t = 1/10
b) 5y-6 = -y +3
4y = 9
y = 9/4
bonne journée !
T.