
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
If the graph of the linear function $y=(a-1)x+a-8$ passes through the first, third, and fourth quadrants, and the solution of the fractional equation in terms of $y$, $\frac{y-5}{1-y}+3=\frac{a}{y-1}$, is greater than $-3$, then the range of values for $a$ is ____.

Present the answer in LaTex format: \boxed{Your answer}
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