Identify the operations (addition, subtraction, division, multiplication) in forming the following expressions and tell how the expressions have been formed.
`2y + 17, 2y – 17`

Answer

To solve the question, we need to identify the operations used in forming the given expressions: `2y + 17` and `2y - 17`. We will also explain how each expression is formed step by step.

### Step 1: Analyze the first expression `2y + 17`

1. **Identify the components**: The expression consists of `2y` and `17`.
2. **Identify the operation**: The operation used here is addition (`+`).
3. **Explain the formation**:
- The term `2y` means that the variable `y` is multiplied by `2`.
- After calculating `2y`, we add `17` to this result.

**Statement**: "In the expression `2y + 17`, `y` is multiplied by `2`, and then `17` is added to the result."

### Step 2: Analyze the second expression `2y - 17`

1. **Identify the components**: The expression consists of `2y` and `17`.
2. **Identify the operation**: The operation used here is subtraction (`-`).
3. **Explain the formation**:
- Again, the term `2y` indicates that the variable `y` is multiplied by `2`.
- After calculating `2y`, we subtract `17` from this result.

**Statement**: "In the expression `2y - 17`, `y` is multiplied by `2`, and then `17` is subtracted from the result."

### Summary of Operations:
- For `2y + 17`: The operation is addition.
- For `2y - 17`: The operation is subtraction.