Lucas has a total of 12 existing pet beds + 8 new pet beds = <<12+8=20>>20 pet beds.

So according to his parents, Lucas has enough room for 20 pet beds / 2 pet beds per pet = <<20/2=10>>10 pets.

# Answer

10
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Lucas wants to get a dog but his parents think he already has too many pets and won't have enough space. He already has 12 pet beds in his room but manages to fit another 8 pet beds. His parents argue that each pet is going to need 2 beds each to feel comfortable. According to his parent's argument, how many pets does Lucas have enough room for?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
10
Lucas wants to get a dog but his parents think he already has too many pets and won't have enough space. He already has 12 pet beds in his room but manages to fit another 8 pet beds. His parents argue that each pet is going to need 2 beds each to feel comfortable. According to his parent's argument, how many pets does Lucas have enough room for?
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