Identify the operations (addition, subtraction, division, multiplication) in forming the following expressions and tell how the expressions have been formed.
`7m, - 7m + 3,- 7m - 3`

Answer

To solve the question, we will analyze each expression step by step and identify the operations involved in forming them.

### Step 1: Analyze the first expression `7m`
- **Operation**: Multiplication
- **Explanation**: The expression `7m` is formed by multiplying the variable `m` by the number `7`.
- **Statement**: "m is multiplied by 7."

### Step 2: Analyze the second expression `-7m + 3`
- **Operations**: Multiplication and Addition
- **Explanation**:
- First, the variable `m` is multiplied by `-7`, which gives `-7m`.
- Then, `3` is added to the result of `-7m`.
- **Statement**: "m is multiplied by -7, and then 3 is added to the result."

### Step 3: Analyze the third expression `-7m - 3`
- **Operations**: Multiplication and Subtraction
- **Explanation**:
- Again, the variable `m` is multiplied by `-7`, resulting in `-7m`.
- Then, `3` is subtracted from the result of `-7m`.
- **Statement**: "m is multiplied by -7, and then 3 is subtracted from the result."

### Summary of Operations:
1. **For `7m`**:
- Operation: Multiplication
- Statement: "m is multiplied by 7."

2. **For `-7m + 3`**:
- Operations: Multiplication and Addition
- Statement: "m is multiplied by -7, and then 3 is added to the result."

3. **For `-7m - 3`**:
- Operations: Multiplication and Subtraction
- Statement: "m is multiplied by -7, and then 3 is subtracted from the result."