State which of the following are equations (with a variable). Give reason for your answer. Identify the variable from the equations with a variable.
`(7 xx 3) - 19 = 8`

Answer

To determine whether the expression `(7 xx 3) - 19 = 8` is an equation with a variable, we will analyze it step by step.

### Step 1: Understand the Expression
The expression given is `(7 xx 3) - 19 = 8`. This is a mathematical statement that includes numbers and operations.

### Step 2: Identify the Components
- The left side of the equation is `(7 xx 3) - 19`.
- The right side of the equation is `8`.

### Step 3: Check for Variables
A variable is typically represented by a letter (like x, y, a, b, etc.) that can take on different values.

In the expression `(7 xx 3) - 19 = 8`, we see:
- `7` and `3` are constants (specific numbers).
- `19` and `8` are also constants.
- There are no letters or symbols representing a variable.

### Step 4: Conclusion
Since there are no variables (letters) present in the expression, we conclude that this is **not an equation with a variable**.

### Final Answer
- **It is not an equation with a variable.**
- **Reason**: The expression does not contain any variable (no letters like x, y, etc.).

### Variable Identification
Since there are no variables in the expression, we cannot identify any variable.

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