Give the step-by-step reasoning process and then the final answer. When Nathan is cold, he adds an extra blanket to his bed. Each blanket warms him up by 3 degrees. One night, he was cold enough that he added half of the 14 blankets in his closet on his bed. How many degrees did the blankets warm Nathan up?
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Nathan added 14 / 2 = 7 blankets to his bed. The blankets warmed Nathan up 7 * 3 = 21 degrees.
The final answer: 21.
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