Mathematics, 25.02.2021 20:50 destinyd10189
Se você adicionar a idade de Natalie e a idade de Fred, o resultado será 40. Se você adicionar a idade de Fred a 4 vezes a idade de Natalie, o resultado será 82. Escreva e resolva um sistema de equações para descobrir a idade de Fred e Natalie.
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Se você adicionar a idade de Natalie e a idade de Fred, o resultado será 40. Se você adicionar a ida...
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