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Example 7.42 from Prealgebra, 7.4 Properties of Identity, Inverses, and Zero
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.
| Division by zero is undefined. | undefined |
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
Simplify:
How did it go?