Simplifying Algebraic Expressions

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Combine like terms and use the order of operations to simplify algebraic expressions.

Questions and Answers

1.

3x + 1 + 8x + 9
- A.
  
  12x + 10
- B.
  
  5x + 8
- C.
  
  11x + 11
- D.
  
  11x + 10
2.

2x + 5y - 7x + 8y
- A.
  
  9x + 13y
- B.
  
  5x + 3y
- C.
  
  -5x + 3y
- D.
  
  -5x + 13y
3.

4(x + 8) - 9
- A.
  
  4x + 32
- B.
  
  4x + 23
- C.
  
  12x - 9
- D.
  
  4x + 24
4.

-3(x + y) + 5(x - y)

Discuss
- A.
  
  2x - 8y
- B.
  
  -2x + 2y
- C.
  
  8x - 8y
- D.
  
  2x - 8y
5.

A + b = b + a is an example of the property called ______________________________________________________________________

Discuss
6.

What number is known as the multiplicative identity? ____________________
7.

Ab(c) = (ab)c is an example of what property? __________________________________

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