Circle + circle + circle + triangle + triangle = 59, circle + circle + triangle + triangle + triangle = 61, then how much is a circle equal to and how much is a triangle equal to?

Circle + circle + circle + triangle + triangle = 59, circle + circle + triangle + triangle + triangle = 61, then how much is a circle equal to and how much is a triangle equal to?

Let the circle be x and the triangle be y
  3x+2y=59
  2x+3y=61
The solution is x = 11, y = 13
That is, the circle equals 11 and the triangle equals 13