When we face a problem, we need to do some extra work to solve the problem. This ‘extra work’ is a solution when we need to work harder in the short term, so that in the long term, it reduces our workload and assorted inconveniences.
For example, you have a problem when your light-bulb blows. You need to put in that ‘extra work’ of going to the shop to buy a new light-bulb, fix it in and throw away the spoiled one. For that bit of ‘extra work’, you have spared yourself the long-term inconvenience of having to work in the darkness.
Your ‘solution’ is not a solution if the work done in the short-term doesn’t alleviate your workload or inconvenience in the long-term. Try to imagine it as having to light a thousand candles every night for the rest of your life to replace the blown electric light-bulb. The lack of light problem has been solved. But in return, there is now a new problem; you are working extra work now for light, and your workload and inconvenience has increased many-fold.