ken-bell_60a6671c14084
ken-bell_60a6671c14084
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sea A la edad de Arturo y C la edad de Carlos: entonces: A= 2C-5 (1) C= C (2C-5)+C=22 C=9 reemplazamos en (1): A=2(9)-5 A=13 13+9=22 osea Arturo 13 y carlos 9