Mathematics

27 May, 14:55

Analyze the solution shown. 1. - |-x| = 7: given

2. |-x| = - 7: multiplication property of equality

3. - x = 7 or - x = - 7: definition of absolute value

4. x = - 7 or x = 7: multiplication property of equality

5. Check: - | - (-7) | = 7, - 7 ≠ 7

-|-7| = 7, 7 = 7

Negative times negative is positive.

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