Answer:
x = 15, y = 38
Step-by-step explanation:
2sides of the triangle are congruent, thus triangle is isosceles.
The 2 base angles are therefore congruent and since right isosceles triangle
Then each base angle = 45°, then
3x = 45 ( divide both sides by 3 )
x = 15
and
y + 7 = 45 ( subtract 7 from both sides )
y = 38
