Answer:
x = 3, y = 30
Step-by-step explanation:
Since the 3 sides are congruent then the triangle is equilateral.
The 3 angles are congruent and equal tp 60°
Evaluate each of the angles to 60 and solve for x and y , that is
25x - 15 = 60 ( add 15 to both sides )
25x = 75 ( divide both sides by 25 )
x = 3
and
2y = 60 ( divide both sides by 2 )
y = 30
