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Sagot :

AYUDA

bjr

6x - 5 = 4x + 3

6x - 5 - 4x = 4x - 4x + 3

2x - 5 = 3

2x -5 + 5 = 3 + 5

2x = 8

2x/2 = 8/2

x = 4

vérif

6*4 - 5 = 19

et

4*4 + 3 = 19

c'est tout bon

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