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Sagot :

VINS

Réponse :

bonjour

5 x + 1 = 16

5 x = 15

x = 3

2 x - 9 = 17

2 x = 26

x = 13

Explications étape par étape


Bonjour!

5x + 1 = 16
5x = 16 - 1
5x = 15
x = 15/3
x = 5


2x - 9 = 17
2x = 17 + 9
2x = 26
x = 26/2
x = 13

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