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Mathematics 21 Online
OpenStudy (anonymous):

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!

OpenStudy (anonymous):

I am just confused... did I get it right or did I solve the inequality wrong

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

what u think now ?

OpenStudy (anonymous):

I got it wrong I AM STILL confused grrrr

OpenStudy (anonymous):

how does this make any sense that X is greater than 4 but less than -5

ganeshie8 (ganeshie8):

good confusion @lyssa :)

ganeshie8 (ganeshie8):

think of it as : X is greater than 4 \(\textbf{some times and, }\)X is less than -5 \(\textbf{some other times !}\)

ganeshie8 (ganeshie8):

you want one practical example ?

ganeshie8 (ganeshie8):

where that thing is useful ?

OpenStudy (anonymous):

Oh. I was thinking to hard

ganeshie8 (ganeshie8):

im also thinking hard of some good example... :)

ganeshie8 (ganeshie8):

@Eyad any nice example u can think of ?

ganeshie8 (ganeshie8):

Eyad left... let me think gimme 2 mnts ok

ganeshie8 (ganeshie8):

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