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HYill
@HYill
April 2019
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Vous pourriez m'aidé pour l'inéquation :
70<2,5x+18
et me dire si cette l'équation est juste:
4x=2,5x+18
4x-2,5x=2,5-2,5+18
1,5x=18
=
x=12
Merci d'avance
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maudmarine
Verified answer
70 <2,5x + 18
70 - 18 < 2,5x
2,5x > 52
x > 52/2,5
x > 20,8
4x = 2,5x + 18
4x - 2,5x = 18
1,5x=18
x = 18/1,5
x = 12
Oui elle est juste
0 votes
Thanks 2
HYill
merci
Commentaires
70 < 2,5x + 18
70 - 18 < 2,5x
52 < 2,5x
52/2,5 < x
20,8 < x
Et ton équation est juste.
0 votes
Thanks 0
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Lista de comentários
Verified answer
70 <2,5x + 1870 - 18 < 2,5x
2,5x > 52
x > 52/2,5
x > 20,8
4x = 2,5x + 18
4x - 2,5x = 18
1,5x=18
x = 18/1,5
x = 12
Oui elle est juste
70 - 18 < 2,5x
52 < 2,5x
52/2,5 < x
20,8 < x
Et ton équation est juste.