Instructions for a craft project say that the length of a piece of red ribbon should be 6 inches less than the length of a piece of blue ribbon. How long is the red ribbon if the length of the blue ribbon is 15 inches?

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Respuesta :

Answer: 9 inches

Step-by-step explanation:

Let r be the length of the red ribbon

r is 6 inches less than 15 inches

r = 15 - 6 = 9 inches