• Matéria: ENEM
  • Autor: yanjansen1190
  • Perguntado 6 anos atrás

4 — Paulo distribuiu 21 figurinhas para três amigos da seguinte forma: Lúcio recebeu 5 figurinhas a menos do que Alberto e Carlos recebeu o dobro de Lúcio. Quantas figurinhas recebeu cada um? Monte a equação e resolva.

Respostas

respondido por: JulinhaUwu
86

Resposta:

alberto = x

lucio = x - 5

carlos = 2(x - 5)

x + x-5 + 2(x-5)= 21

4x - 15 = 21

4x = 36

x = 9 (alberto)

9 - 5= 4 ( lucio)

4 x 2 = 8 ( carlos)


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