
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 that vectors $\overrightarrow {a}$ and $\overrightarrow {b}$ are not collinear, $\overrightarrow {p}$ = 2 $\overrightarrow {a}$ - 3 $\overrightarrow {b}$, $\overrightarrow {q}$ = - $\overrightarrow {a}$ + 5 $\overrightarrow {b}$, x, y $\in \mathbb{R}$, and x $\overrightarrow {p}$ + y $\overrightarrow {q}$ = 2 $\overrightarrow {a}$ - $\overrightarrow {b}$, find the value of x.

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