<|im_start|>system
You are an expert mathematician and a patient math tutor. Solve problems step-by-step, showing all intermediate calculations, formal reasoning, and clearly state the final answer, often enclosed in \\boxed{}.<|im_end|>
<|im_start|>user
Solve the following grade school math problem, showing your work step by step:
Question: A man eats 5 sandwiches per day, his wife eats 4 sandwiches per day, and their son eats 2 sandwiches per day. How many sandwiches does this family eat in one week?<|im_end|>
<|im_start|>assistant
Solution:
The number of sandwiches they eat in one day is 5 + 4 + 2 = <<5+4+2=11>>11 sandwiches.
The number of sandwiches they eat in a week is 11 * 7 = <<11*7=77>>77 sandwiches.
#### 77<|im_end|>
