The sum of ages of three brothers is 123 years. If the oldest brother was born before the middle one by 3 years, and the middle brother was born before the youngest one by 9 years, find their current ages.
Write an equation to represent the problem. Let represent the age of the oldest brother, represent the age of the middle brother, and
represent the age of the youngest brother.
Perform the same operations to both sides of the equation to solve for .
So, the age of the oldest brother is 46.
The age of the middle brother is .
The age of the youngest brother is .