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anonymous

  • one year ago

The inequality x-3>0 is equivalent to x<3 How do I show that this is false ?

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  1. jim_thompson5910
    • one year ago
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    Add 3 to both sides. What do you get?

  2. anonymous
    • one year ago
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    Add 3 ? To the 3 and the 0?

  3. jim_thompson5910
    • one year ago
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    |dw:1442809334795:dw|

  4. jim_thompson5910
    • one year ago
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    |dw:1442809354872:dw|

  5. jim_thompson5910
    • one year ago
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    we add 3 to both sides to have the -3 and +3 add to 0 and cancel out |dw:1442809380605:dw|

  6. anonymous
    • one year ago
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    You can produce a counterexample. Say if x = 4 4 - 3 > 0 true but 4 < 3 is false

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