Give expressions for the following cases.
`-a` divided by 7

Answer

To find the expression for "-a divided by 7", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the expression**: The expression we need to work with is "-a divided by 7". This can be written mathematically as \(-a \div 7\).

**Hint**: Look for the terms in the expression. Here, we have "-a" as the numerator and "7" as the denominator.

2. **Rewrite the division**: Division can be expressed as multiplication by the reciprocal. Therefore, we can rewrite \(-a \div 7\) as \(-a \times \frac{1}{7}\).

**Hint**: Remember that dividing by a number is the same as multiplying by its reciprocal.

3. **Express the final result**: The expression \(-a \times \frac{1}{7}\) can be simplified to \(-\frac{a}{7}\).

**Hint**: When multiplying a term by a fraction, you can place the term in the numerator of the fraction.

### Final Expression:
The expression for "-a divided by 7" is \(-\frac{a}{7}\).