
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
Let $2a + 3 = 2b + 5 = 2c + 7 = 2d + 9 = 2(a + b + c + d) + 13$. What is the value of $a + b + c + d$?
A) $-5$
B) $-\frac{10}{3}$
C) $-\frac{14}{3}$
D) $\frac{5}{3}$
E) $5$

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