Each brick wall needs 30 x 50 = <<30*50=1500>>1500 bricks.

Thus, the two walls need 1500 x 2 = <<1500*2=3000>>3000 bricks.

# Answer

3000
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Two brick walls are being built. Each wall has 30 bricks in a single row and there are 50 rows in each wall. How many bricks will be used to make both walls?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
3000
Two brick walls are being built. Each wall has 30 bricks in a single row and there are 50 rows in each wall. How many bricks will be used to make both walls?
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