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Mayra has 3 cats. Luis has twice as many cats as Mayra.

Write an expression for the number of cats Luis has:



Write an expression for the number of cats Luis and Mayra have together:



2. Each cat eats about ½ cup of cat food a day.

Write an expression for the amount of cat food all the cats eat in one day:



Write an expression for the amount of cat food all the cats eat in one week:

Respuesta :

1. 3x=y
3+y=z
2. 1/2y=x
7x=z

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