<h2>
Explanation:</h2><h2>
</h2>
In this case we have the following expression:

We know that Karen was trying to factor out this and she found that the greatest common factor of these terms was 2, in other words we can write this expression as:

An area model for this expression could be the area of a rectangle that has the following dimensions:

So the area model can be written as:

12 black and white, 18 color in one row
6 black and white, 9 color in two rows
4 black and white, 6 color in three rows
2 black and white, 3 color in six rows
Answer:
6x+3
Step-by-step explanation:
You first must distribute the negative sign to 3x+7, giving you -3x+7. Then you combine like terms (the 9x+(-3x) and 10+(-7)). This would give you 6x+3
A is the correct answer because negative number is know as intergers but not a whole number!!