Find the value of the following.
`3x-5y` when x = 5 and y = 2

Answer

To find the value of the expression \(3x - 5y\) when \(x = 5\) and \(y = 2\), we can follow these steps:

### Step-by-Step Solution:

1. **Write down the expression**:
\[ 3x - 5y \]

2. **Substitute the values of \(x\) and \(y\)**:
Given \(x = 5\) and \(y = 2\), we substitute these values into the expression:
\[ 3(5) - 5(2) \]

3. **Calculate the multiplication**:
- For \(3(5)\):
\[ 3 \times 5 = 15 \]
- For \(5(2)\):
\[ 5 \times 2 = 10 \]

4. **Substitute the results back into the expression**:
Now we replace the multiplications in the expression:
\[ 15 - 10 \]

5. **Perform the subtraction**:
\[ 15 - 10 = 5 \]

6. **Final answer**:
Therefore, the value of \(3x - 5y\) when \(x = 5\) and \(y = 2\) is:
\[ \boxed{5} \]