1. **State the problem:** Given the equation $2A - B = 30$ and $B = 4$, find the value of $A - 13$.
2. **Substitute the known value:** Replace $B$ with 4 in the equation:
$$2A - 4 = 30$$
3. **Solve for $A$:**
Add 4 to both sides:
$$2A = 30 + 4$$
$$2A = 34$$
Divide both sides by 2:
$$A = \frac{34}{2} = 17$$
4. **Find $A - 13$:**
$$A - 13 = 17 - 13 = 4$$
**Final answer:** $4$
Solve For A 43Bc59
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