Can someone help me with this?

the answer is 18 cause if u replace it is will give 45 +45 for the angle beside would give u 90

what's the question?

step-by-step explanation:

there is no question.

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.