Respuesta:
[tex]4x + x = 60 \\ 5x = 60 \\ x = 12[/tex]
Propina de Mercedes=x=12
Mercedes tiene de propina S/. 12
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Respuesta:
[tex]4x + x = 60 \\ 5x = 60 \\ x = 12[/tex]
Propina de Mercedes=x=12
Mercedes tiene de propina S/. 12