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Sagot :

Bonjour,

2x + 5 = 3

2x + 5 - 5 = 3 - 5

2x = -2

2x ÷ 2 = -2 ÷ 2

x = -1

Réponse :

Explications étape par étape

Bonjour,

2x+5 =3

2x+5-5 = 3-5

2x = -2

2x = -2/2 = -1

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