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Find all x such that 5x - 4 < 2x + 5.  Enter your answer using interval notation.

 Sep 11, 2020
 #1
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5x - 4 < 2x + 5.        add 4 to both sides of the equation

5x < 2x + 9              subtract 2x from both sides

3x <9                       divide both sides by 3

x < 3              Interval     (- inf, 3)

 Sep 11, 2020

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