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9-80.

Simplify each of the following expressions.  Homework Help ✎

  1. Use the Order of Operations.

  1. How can you combine these?

  1. Use the same method as part (a).

  1. Use the Order of Operations.

  1. What do you get when you subtract any number from itself?

  1. Start from the left and work your way to the right.

  1. Combine like terms.

  1. See part (g).