When looking for synonyms for the phrase "solution system", there are a few options available. One possible phrase is "problem-solving system", which refers to a system that helps to solve issues or challenges. Another alternative is "resolution system", which emphasizes the process of reaching a conclusion or solution. Alternatively, "remediation system" may be used to focus on the act of fixing or repairing something that is broken. Finally, "fixing system" or "resolving system" can also be used to refer to a system that aims to address specific issues or problems. Ultimately, the best synonym for "solution system" depends on the specific context and the intended meaning of the phrase.