Lesson 197 of 1524
1.6 Equivalent Equations
Tell whether two expressions are equivalent and explain why or why not
Practice this chapterTell whether two expressions are equivalent and explain why or why not N 2 - 9 2 ( 4 - 3 ) or ( n + 3 ) · n - 3 8 - 3 · 2 n 2 - 9 2 ( 4 - 3 ) or ( n + 3 ) · n - 3 8 - 3 · 2
Be able to identify the moves that can be made to transform an equation into an equivalent one; explain what it means for two equations to be equivalent, and how equivalent equations can be used to describe the same situation in different ways.
Worked example
What does this chapter state?
- 1Tell whether two expressions are equivalent and explain why or why not
- 2That claim is the chapter’s own statement.
- 3Answer from the claim, not from where the chapter sits in the book.
Result: Tell whether two expressions are equivalent and explain why or why not
Why. The sentence is taken from this chapter’s summary or key concepts.
Answer with the meaning this chapter gives. A nearby idea from the same book is a different term.
Practice margin
This chapter
A fresh set from this chapter only. Choose 10 or 20. Multiple choice and fill-in, with no repeat inside the set.