How many squares would it take to balance one disk?

Question

If 3 triangles is equal to 5 disks, and if 1 triangle is equal to 2 squares plus 1 disk,  how many squares would it take to balance one disk? 

Answer 1

3t = 3(2s + d)

3t = 6s + 3d

3t = 5d

5d = 6s + 3d

2d = 6s

d = 3s

 

Three squares