misswiss123
Evaluate the expression |2x + 1| when x = 3/2
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Just Put x=3/2 in the equation
misswiss123
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4 1/2?
cbrennan123
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you put 2(3/2) which is 3 and the you do 3+1. I hoped that helped
hba
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|dw:1356364514241:dw|
misswiss123
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3/4?
hba
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Well we just have to add now.|dw:1356364640485:dw|
misswiss123
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23
misswiss123
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I'm sorry I'm really awful at math lol
hba
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I think you are confused let me show you with latex.
\[\left| 2x+1 \right|\]\[\left| 2(\frac{ 3 }{ 2 })+1 \right|\]\[\left| \cancel 2\ (\frac{ 3 }{ \cancel 2 })+1 \right|\] \[\left| 3+1 \right|\]\[\left| 4 \right|\] or
4
hba
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@misswiss123
got it ?
misswiss123
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Oh I had put 4 1/2 so it would just be 4 right?
hba
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Yeah right :)
misswiss123
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Thank you ! ^.^
hba
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I guess you need to practice.
practice makes perfect :)