resoudre les équations x+5=12 x+8=3 x-7=5 x-2=-9
Mathématiques
minimoi39
Question
resoudre les équations
x+5=12
x+8=3
x-7=5
x-2=-9
x+5=12
x+8=3
x-7=5
x-2=-9
2 Réponse
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1. Réponse winner123
bonsoir
x + 5 = 12
x = 12 - 5
x = 7
x + 8 = 3
x = 3 - 8
x = - 5
tu fais la suite, tu as 2 exemples -
2. Réponse maudmarine
x + 5 = 12
x = 12 - 5
x = 7
x + 8 = 3
x = 3 - 8
x = - 5
x - 7 = 5
x = 5 + 7
x = 12
x - 2 = - 9
x = - 9 + 2
x = - 7