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Example 3.4 from Prealgebra, 3.1 Introduction to Integers
Simplify:
Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.
| The opposite of is |
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
Simplify:
How did it go?