In Ms. Regan's closet, there is one gray t-shirt for every two black t-shirts. She buys 6 gray shirts so she now has an equal number of gray and black shirts. How many gray t-shirts and black t-shirts does she own now?

12

Step-by-step explanation:

Given That:

1 gray t-shirt for every 2 black shirt

Number of gray shirts bought = 6 to ensure that number of gray and black t-shirts are the same

Before:

If x = number of gray t-shirt

Number of black t-shirts = 2x

Now :

After buying 6 gray t-shirts

x + 6 = 2x

6 = 2x - x

6 = x

x = 6

Hence,

Numbe of gray and black t-shirt now is :

x + 6 = 6 +6 = 12

2(x) = 2 * 6 = 12

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step-by-step explanation: