
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 vectors $\overrightarrow {a}$ = (1, 1), $\overrightarrow {b}$ = (-1, 3), and $\overrightarrow {c}$ = (2, x) that satisfy the equation (3$\overrightarrow {a}$ + $\overrightarrow {b}$) • $\overrightarrow {c}$ = 10, find the value of x.

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