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Mathematics 15 Online
OpenStudy (anonymous):

solve for x |2x+5|>9

myininaya (myininaya):

2x+5>9 2x+5<-9 2x>9-5 2x<-9-5 2x>4 2x<-14 x>2 x<-7

myininaya (myininaya):

~~ ~~ ___|___|___ -7 2 interval notation: (-inf,-7)U(2,inf)

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