Write the inequality obtained in each of the following cases : On subtracting 7 from each side of `11lt21`,

Answer

To solve the problem, we need to subtract 7 from each side of the inequality \( 11 < 21 \).

### Step-by-Step Solution:

1. **Start with the original inequality**:
\[ 11 < 21 \]

2. **Subtract 7 from each side**:
\[ 11 - 7 < 21 - 7 \]

3. **Perform the subtraction**:
- On the left side: \( 11 - 7 = 4 \)
- On the right side: \( 21 - 7 = 14 \)

4. **Write the new inequality**:
\[ 4 < 14 \]

### Final Answer:
The inequality obtained after subtracting 7 from each side of \( 11 < 21 \) is:
\[ 4 < 14 \]