For problems 3 and 4, state whether the given values of c and d create an equation with only one solution, infinitely many solutions, or no solution.
3. 5x + 2 = cx + d
a. c = 5, d = 5
b. c = 5, d = 2
c. c = 2, d = 5

4. -2 (3x-4) = cx + d
a. c = -6, d = -4
b. c = -4, d = -6
c. c = -6, d=8