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Yanissmansourip66ud4
@Yanissmansourip66ud4
May 2019
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Bonjour je suis en 3e est j'ai besoin d'aide je ne comprend rien pour une question si elle est vraie ou fausse.
La question est L'équation 2 x + 5 = 7 x − 8 a pour solution 2,7 justifier
merci d'avance
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Verified answer
2x +5 = 7x -8
2x -7x = -5 -8
-5x = -13
x = +13/5 = 2,6
2,6≠ 2,7
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Verified answer
2x +5 = 7x -82x -7x = -5 -8
-5x = -13
x = +13/5 = 2,6
2,6≠ 2,7