which of the following is an example of an equation with no solution?

a 3x + 4= 3x + 4
b 3x + 4= 3x + 3
c 3x + 4= 4x + 3
d 4x + 3= 3x + 3

The equation with no solution is:

c) 3x + 4 = 4x + 3