Which of the following is an example of an equation with exactly one solution?(1 point) Responses 3x+4=4x+3 3 x plus 4 equals 4 x plus 3 3x+4=3x+3 3 x plus 4 equals 3 x plus 3 3x+4=3x+4 3 x plus 4 equals 3 x plus 4 4x+3=4x+3