Find the value of :
2p + 3q + 4r + por when p =-1,q = 2 and r = 3

Answer

To find the value of the expression \( 2p + 3q + 4r + p \) when \( p = -1 \), \( q = 2 \), and \( r = 3 \), we can follow these steps:

### Step 1: Write down the expression
The expression we need to evaluate is:
\[ 2p + 3q + 4r + p \]

### Step 2: Combine like terms
Notice that \( 2p + p \) can be combined:
\[ 2p + p = 3p \]
So, we can rewrite the expression as:
\[ 3p + 3q + 4r \]

### Step 3: Substitute the values of \( p \), \( q \), and \( r \)
Now, substitute the given values into the expression:
- \( p = -1 \)
- \( q = 2 \)
- \( r = 3 \)

Substituting these values gives:
\[ 3(-1) + 3(2) + 4(3) \]

### Step 4: Calculate each term
Now, calculate each term:
1. \( 3(-1) = -3 \)
2. \( 3(2) = 6 \)
3. \( 4(3) = 12 \)

### Step 5: Combine the results
Now, combine the results:
\[ -3 + 6 + 12 \]

### Step 6: Perform the addition
First, add \( -3 \) and \( 6 \):
\[ -3 + 6 = 3 \]
Now, add \( 3 \) and \( 12 \):
\[ 3 + 12 = 15 \]

### Final Answer
Thus, the value of the expression \( 2p + 3q + 4r + p \) when \( p = -1 \), \( q = 2 \), and \( r = 3 \) is:
\[ \boxed{15} \]