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Find all real numbers s such that -2(s - 7) > 4s + 8. Give your answer as an interval.

 Aug 16, 2018
 #1
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 -2(s - 7) > 4s + 8   simplify the  left side

 

-2s + 14 > 4s + 8          add  2s to  both sides, subtract 8 from both sides

 

6 > 6s       divide both sides by 6

 

1 > s       which  means the same thing as     s < 1

 

So....the answer  is   ( - infinity, 1 )

 

 

 

cool cool cool

 Aug 16, 2018

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