lyssa
This is the ineuality that I need to solve
|2X+1|-3 > 6
My work: 2X+1>9 2X+1<-9
-1 -1 -1 -1
_____________________
2X>8 2X<-10
My answers:
x>4 X<-5
But what doesnt make sense is that X is greater than four but at the same time less than -5 I dont think I did this right!
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lyssa
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I am just confused... did I get it right or did I solve the inequality wrong
lyssa
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ok
Eyad
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what u think now ?
lyssa
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I got it wrong I AM STILL confused grrrr
lyssa
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how does this make any sense that X is greater than 4 but less than -5
ganeshie8
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good confusion @lyssa :)
ganeshie8
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think of it as : X is greater than 4 \(\textbf{some times and, }\)X is less than -5 \(\textbf{some other times !}\)
ganeshie8
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you want one practical example ?
ganeshie8
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where that thing is useful ?
lyssa
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Oh. I was thinking to hard
ganeshie8
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im also thinking hard of some good example... :)
ganeshie8
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@Eyad any nice example u can think of ?
ganeshie8
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Eyad left... let me think gimme 2 mnts ok
ganeshie8
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|dw:1341769314993:dw|
ganeshie8
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suddenly i realized that i am in middle of road.
ganeshie8
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i want to express how i can protect myself by getting out of road, mathematically
ganeshie8
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@lyssa see.. im not that creative... so pls try to see what im trying to explain n cooperate plsss
ganeshie8
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|dw:1341769656989:dw|
ganeshie8
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if i move forward 4 feet, il land in safe area.
if i move backward 5 feet also, its safe
ganeshie8
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i need to move either four feet forward (or) 5 feet backward
ganeshie8
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anything less than 4 and greater than -5 is dangerous
ganeshie8
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i can express the situation as :
move >4 distance or
move <-5 distance
ganeshie8
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x > 4 or x < -5
ganeshie8
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hope i didnt confuse u too much :\
lyssa
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Well I got it when you said the first thing sorry:D Thanks sooooo much
ganeshie8
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np... glad to hear u got it :)