Plants in the Nursery

In a small plant nursery, the owner has a total of 50 plants, consisting of tomato plants and pepper plants. If the number of tomato plants is represented as t and the number of pepper plants is represented as p, the following equation can be formed:

$$ t + p = 50 $$

Additionally, the owner has twice as many tomato plants as pepper plants. This can be expressed with the equation:

$$ t = 2p $$

How many pepper plants does the owner have?