answer: bea's uncle is 25 years old.
step-by-step explanation:
given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":
we must add 15 to both sides of the equation:
now we need to divide both sides of the equation by 3:
therefore, we can conclude that bea's uncle is 25 years old.