I NEED HELP ASAP!!! Question is in the photo

Answer: y=45 degrees and x=45 degrees
Step-by-step explanation:
yzx is a triangle
m<z= 90 degrees
sum of interior angles in a triangle is 180 - 90 (m<z) = 90
therefore y+x=90
and y=x
therefore;
y=45 degrees and x=45 degrees