Answer:
Part 1) The value of y is
Part 2) The value of z is

Part 3) The value of x is

Explanation:
step 1
Find the value of y
we know that
----> given problem (is a right angle)


step 2
Find the value of z
we know that
----> by vertical angles
Solve for z




step 3
Find the value of x
we know that
----> by supplementary angles (linear pair)
Substitute the value of y and the value of z and solve for x





