Inherent meaning and justification of cross multiplication

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Reference no: EM13121066

1. What is the inherent meaning and justification of cross multiplication as it applies to solving an equality?

2. Is | x -2 | the same as | 2 - x |? Please explain your answer.

3. How do you express the following mathematically?

a. y is at least 3

b. y is more than 3

c. y is at most 3

d. y is less than 3

Reference no: EM13121066

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