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The sum of -7 pq and 2pq is...

The sum of `-7 pq` and 2pq is

A

`- 9 pq`

B

`9 pq`

C

`5pq`

D

`-5pq`

Text Solution

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The correct Answer is:
To find the sum of `-7pq` and `2pq`, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Terms**: We have two terms: `-7pq` and `2pq`. 2. **Write the Expression for the Sum**: We can express the sum as: \[ \text{Sum} = -7pq + 2pq \] 3. **Combine Like Terms**: Since both terms contain the variable `pq`, we can combine the coefficients: \[ \text{Sum} = (-7 + 2)pq \] 4. **Perform the Addition**: Now, we need to add the coefficients: \[ -7 + 2 = -5 \] 5. **Write the Final Result**: Substitute the result back into the expression: \[ \text{Sum} = -5pq \] Thus, the sum of `-7pq` and `2pq` is: \[ \boxed{-5pq} \]
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