Bonjour,
6x + 40 = 121 - 3x
6x + 3x = 121 - 40
9x = 81
x = 81/9
x = 9
Réponse :
6x+40=121-3x
6x+3x=121-40
9x= 81
x=9
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Bonjour,
6x + 40 = 121 - 3x
6x + 3x = 121 - 40
9x = 81
x = 81/9
x = 9
Réponse :
6x+40=121-3x
6x+3x=121-40
9x= 81
x=9