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Find all real numbers x such that 3x - 7 <= 5x + 9. Give your answer as an interval.

 Nov 12, 2019
 #1
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3x - 7 ≤ 5x + 9         subtract  3x from both sides, subtract 9 from both sides

 

-16 ≤ 2x                divide both sides by 2

 

-8 ≤ x

 

( -infinity, -8 ]

 

cool cool cool

 Nov 12, 2019

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