By the tick marks on the triangle, we know that the triangle is an equilateral triangle.
All the angles in an equilateral triangle add up to 180 degrees.
180/3= 60
Have each equation set to 60.
2y= 60
Divide 2 into both sides.
y= 30
25x- 15= 60
Add 15.
25x= 75
Divide 25 into both sides.
x=3.
(3,30)
I hope this helped!