
Home > MC1 > Chapter 7 > Lesson 7.2.4 > Problem 7-83
7-83.
Since x = 6 meters, the three pieces of lumber now look like this:
Can you find the total length of the lumber pieces?
Using the diagram above, can you write an expression to represent the pieces of lumber?
If 4 + x + x = 20, why must x + x = 16?
Can you find the value of x?