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To solve |-5x-2|-7>0 so I have to add positive seven to both sides? Once I add do I split the equation in two?

To solve |-5x-2|-7>0 so I have to add positive seven to both sides? Once I add do I split the equation in two?
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5 votes
To solve |-5x-2|-7>0 so I have to add positive seven to both sides? Once I add do I split the equation in two?

User Petra
by
7.8k points

2 Answers

2 votes
|-5x-2|-7>0
Add 7 on both sides
|-5x-2|-7+7>0+7
|-5x-2|>7

|f(x)|>a
f(x)<-a or f(x)>a
-5x-2<-7 or -5x-2>7
solve:
-5x-2<-7 : x>1
solve:
-5x-2>7 : x<-9/5



User Albrnick
by
7.8k points
4 votes
Yes. You are correct. Let me know if you need any more help with this question
User GiovaZ
by
7.9k points
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