Find the value of each variable. Write an equation then solve showing ALL the work

Answer: z=45 x=45 y=90
Step-by-step explanation:
Z is linear pair to 135 so 180-135 =45
the opposite sides of X and Z are congruent therefore by ITT or CITT one of them i don’t remember which the opposite angles are congruent. lastly all angles in a triangle are 180 so 45+45 =90 180-90=90