
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
Given: $x$, $y$ satisfy $3x-4y=5$.  
$(1)$ Express $y$ in terms of $x$, the result is $y=$______;  
$(2)$ If $y$ satisfies $y\leqslant x$, find the range of values for $x$;  
$(3)$ If $x$, $y$ satisfy $x+2y=a$, and $x \gt 2y$, find the range of values for $a$.

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