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Find all real numbers s such that -2(s + 7) > 4s + 8.  Please give your answer in interval notation.

 Jul 11, 2021
 #1
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-2(s + 7) > 4s + 8      expand L side

-2s-14 > 4x+8            add 2s and 12 to both sides of the equation

0 > 6x+ 22                 subtract 22 from both sides

-22 > 6x                     divide both sides by 6

-22/6 >x                     or...re-wrote as

 

x< - 22/6                      (-inf, - 22/6)

 Jul 11, 2021

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