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OpenStudy (anonymous):
First you have to isolate x. Do you know how to do that?
OpenStudy (anonymous):
I call dibs precious32. o.o
OpenStudy (anonymous):
lol go ahead
OpenStudy (marissalovescats):
Welcome to OpenStudy @mkiby! :)
OpenStudy (anonymous):
5>-3x-1
To isolate x, add 1 to both sides.
5 + 1>-3x
Now you combine like terms.
6 > -3x
Then divide both sides by -3 to remove the -3 from x.
-2 > x
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OpenStudy (anonymous):
> = < are all just comparisons. You can treat them the same way.
OpenStudy (marissalovescats):
Don't forget that when you divide by a negative number, your inequality sign flips. So in this case the answer would be
-2<x and not -2>x
OpenStudy (anonymous):
Thank you. Thats what I came up with but it was marked wrong and the answer they wanted was -2<x
OpenStudy (anonymous):
marissa figured that out. Sorry, at least now I know. :D
OpenStudy (anonymous):
Got it. Now I see it
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OpenStudy (anonymous):
Give her a medal.
OpenStudy (anonymous):
x<-2
OpenStudy (marissalovescats):
It can be a tricky rule you forget about, but in inequalities if you have to divide by a negative number to solve for x, you just flip your sign :)
I hope you enjoy your future time on OpenStudy! @mkiby