Mathematics
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OpenStudy (anonymous):
help help!
medal if correct.... Solve for x: 3 − (2x − 5) < −4(x + 2)
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OpenStudy (anonymous):
x < −8
x > −8
x < −3
x > −3
OpenStudy (anonymous):
can anyone help?
OpenStudy (misty1212):
HI!
OpenStudy (anonymous):
i don't understand it
OpenStudy (misty1212):
\[3-(2x-5)<-4(x+2)\] we got to get rid of the parentheses first
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OpenStudy (anonymous):
ok
OpenStudy (misty1212):
distibutive property
\[3-2x+5<-4x-8\] or
\[-2x+8<-4x-8\]
OpenStudy (misty1212):
add \(4x\) to both sides, tell me what you get
OpenStudy (anonymous):
you get 6x
OpenStudy (misty1212):
no be careful with your signs
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OpenStudy (misty1212):
\[-2x+4x=?\]
OpenStudy (anonymous):
ooo 2x?
OpenStudy (anonymous):
ohh*
OpenStudy (anonymous):
so 16
OpenStudy (misty1212):
oops
\[2x+8<-8\] add \(8\) to both sides
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OpenStudy (anonymous):
so 0?
OpenStudy (anonymous):
2x<0?
OpenStudy (misty1212):
yeah
\[2x<0\\
x<0\] is the final answer
OpenStudy (misty1212):
ok i see that is not a choice lets go back
OpenStudy (anonymous):
so what would be the answer out of these... x < −8
x > −8
x < −3
x > −3
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OpenStudy (misty1212):
i made a mistake
OpenStudy (anonymous):
ok were do we start
OpenStudy (misty1212):
the answer is \(x<-8\)
OpenStudy (misty1212):
\[3 − (2x − 5) < −4(x + 2)\]
\[3-2x+5<-4x-8\\
-2x+8<-8x-8\\
2x+8<-8\\
2x<-16\\
x<-8\]
OpenStudy (anonymous):
Hey I've got you linked into your problem I posted
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OpenStudy (anonymous):
thx for your help!:) here is your @misty1212
OpenStudy (anonymous):
@Calvin3
OpenStudy (anonymous):
thx for helping me @KALIAN
OpenStudy (anonymous):
Did u get cause if u didn't, I've got 2 people solving it on my post :)