prompt: The difference between the ages of two friends is 2 years. The sum of their ages is 74 years. Find the age of the older friend.
messages.content: The difference between the ages of two friends is 2 years. The sum of their ages is 74 years. Find the age of the older friend.
messages.role: user
messages.content: Let X be the age of the older friend.
  The younger friend is X-2 years old.
  So, the age of both is X + (X-2) = 74.
  X + X = 74 + 2.
  2 * X = 76.
  Then, the older friend is X = <<38=38>>38 years old.
  #### 38
messages.role: assistant