Mathematics, 25.06.2019 01:00 ronnie7898

En una comunidad se intercambian productos alimenticios a, b, c y d con la modalidad del trueque, utilizando un mismo recipiente llamado a "medida" para cada producto. si una medida de a más una de c se cambia por 5 medidas de b; una medida de a más una de b se cambia por una de c; y una medida de b más una de c se cambia por una de d, ? cuántas medidas de b se cambian por una de d?

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En una comunidad se intercambian productos alimenticios a, b, c y d con la modalidad del trueque, ut...