Identify the equations that have one solution, infinitely many solutions, or no solution.

A. 1/2y + 3.2y = 20

B. 15/2 + 2z = 1/4 = 4z + 29/4 - 2z

C. 3z + 2.5 = 3.2 + 3z

D. 1.1 + 3/4x + 2 = 3.1 = 3/4x

E. 4.5r = 3.2 + 4.5r

F. 2x + 4 = 3x + 1/2

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