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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?

2x+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?

2x+2
Now remove anything that is the same on both sides. Which side is greater?

Mat A

3x+2

Mat B

3x+2
Now remove 3x from each side because they are the same.
2=2; They are equal.