To solve the equation \(7a - b = 15\) for \(a\), follow these steps:

1. **Isolate \(a\)**:
   Add \(b\) to both sides of the equation:
   \[
   7a = 15 + b
   \]

2. **Solve for \(a\)**:
   Now divide both sides by 7:
   \[
   a = \frac{15 + b}{7}
   \]

Thus, the solution for \(a\) is:
\[
a = \frac{15 + b}{7}
\]

Would you like any further explanation or details?

Here are 5 related questions for practice:
1. If \(7a - b = 30\), solve for \(a\).
2. Solve for \(a\) in \(9a - 2b = 27\).
3. If \(5a + 2b = 10\), solve for \(a\).
4. Solve for \(a\) in \(3a - b = 21\).
5. If \(8a - 4b = 32\), solve for \(a\).

**Tip:** Always isolate the variable you want to solve for by using inverse operations like addition, subtraction, multiplication, or division.

Learn how to solve the linear equation 7a - b = 15 with a step-by-step solution. This problem explores core algebraic concepts like isolating variables and solving linear equations, suitable for students in Grades 6-8.

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