Réponse:
x× 6+12 =4
(x×3 +2)×2=18
(x×2+4)×3=42
(x+4)×7-x=82
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Réponse:
x× 6+12 =4
(x×3 +2)×2=18
(x×2+4)×3=42
(x+4)×7-x=82