
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
In the diagram, $EF$ and $GH$ are straight lines. What is the value of $y?$ [asy]
draw((0,0)--(12,0));
draw((0,5)--(12,5));
draw((4,0)--(6,5)--(10,0));
label("$70^\circ$",(6,4.5),W);
label("$40^\circ$",(6.5,4.5),E);
label("$E$",(0,5),W);
label("$G$",(0,0),W);
label("$F$",(12,5),E);
label("$H$",(12,0),E);
label("$150^\circ$",(4,0),NW);
label("$y^\circ$",(8,0),N);
[/asy]

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