### Home > MC2 > Chapter 5 > Lesson 5.2.3 > Problem 5-67

5-67.

Mat A

How many zero pairs of *x*-tiles are there?

There are two zero pairs of *x*-tiles. Now how many zero pairs of unit tiles are there?

There is one pair of zero unit tiles. Now remove the zero pairs and what is left?

2*x*+1

Mat B

How many zero pairs of *x*-tiles are there?

There are two zero pairs of *x*-tiles. Now how many zero pairs of unit tiles are there?

There are four pairs of zero unit tiles. Now remove the zero pairs and what is left?

2*x*+2

Now remove anything that is the same on both sides. Which side is greater?

Mat A

3*x*+2

Mat B

3*x*+2

Now remove 3*x* from each side because they are the same.

2=2; They are equal.