Answer: It has only one solution.
Step-by-step explanation:
Since we have given that
[tex]6d+8=14+3d[/tex]
We need to solve the above equation first.
So, it becomes,
[tex]6d+8=14+3d\\\\6d-3d=14-8\\\\3d=6\\\\d=\dfrac{6}{3}\\\\d=2[/tex]
Hence, the value of d is 2 which is unique solution.
Therefore, it has only one solution.