
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
Calculate:<br/>$(1)12-\left(-18\right)+\left(-7\right)-15$;<br/>$(2)-0.5+(-3\frac{1}{4})+(-2.75)+(+7\frac{1}{2})$;<br/>$(3)-2^{2}+3\times \left(-1\right)^{2023}-|-4|\times 5$;<br/>$(4)-3-[-5+(1-2×\frac{3}{5})÷(-2)]$.

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