Mathematics
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OpenStudy (kc_kennylau):
Simplify 9x-7i>3(3x-7u).
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OpenStudy (kc_kennylau):
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OpenStudy (kc_kennylau):
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OpenStudy (kc_kennylau):
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razor99 (razor99):
Hey let me help u with that
OpenStudy (kc_kennylau):
thanks :D
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razor99 (razor99):
okay hold no i will have to do it on a rough sheet
razor99 (razor99):
*on
OpenStudy (kc_kennylau):
ok :)
razor99 (razor99):
wait is that 7i
razor99 (razor99):
Hello u there
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OpenStudy (j-cross18):
yes?
razor99 (razor99):
okay
OpenStudy (kc_kennylau):
?
OpenStudy (kc_kennylau):
that's 9x-7i>3(3x-7u) what's the problem
razor99 (razor99):
OH ITS OKAY I MEAN DO WE HA VE TO SOLVE FOR X OR I
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razor99 (razor99):
srry for the caps lock
OpenStudy (kc_kennylau):
just have to simplify the ineq :)
OpenStudy (kc_kennylau):
you have any idea? :o
razor99 (razor99):
yea first did u remove the bracket okay
razor99 (razor99):
Imean like this 9x-7i<3(3x-7u) solve the brackets
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OpenStudy (kc_kennylau):
so it's 9x-7i<9x-21u?
OpenStudy (kc_kennylau):
oh wait the sign is greater
OpenStudy (kc_kennylau):
so it's 9x-7i>9x-21u?
razor99 (razor99):
yea lol srry about that now can u solve it
OpenStudy (kc_kennylau):
help me... :/
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OpenStudy (kittiwitti1):
@razor99 already helped you, what are you talking about?
OpenStudy (kc_kennylau):
what after that
OpenStudy (kc_kennylau):
what after 9x-7i>9x-21u
OpenStudy (kc_kennylau):
oh do i subtract 9x from both sides?
OpenStudy (kc_kennylau):
so it becomes -7i>-21u?
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OpenStudy (kc_kennylau):
then is it done?
razor99 (razor99):
Yes very good
OpenStudy (kc_kennylau):
done?
razor99 (razor99):
nope
OpenStudy (kc_kennylau):
what to do?
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OpenStudy (kc_kennylau):
@razor99 here?
OpenStudy (kittiwitti1):
He's here, be patient
OpenStudy (kc_kennylau):
can you help me?
OpenStudy (kc_kennylau):
what to do after that?
razor99 (razor99):
Um keep t\i and take the other remianing thigs to other side okay
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razor99 (razor99):
i mean the i
OpenStudy (kc_kennylau):
-7i>-21u
-7i+21u>0?
OpenStudy (kc_kennylau):
that seems to be complicating the problem...
razor99 (razor99):
yes
OpenStudy (kc_kennylau):
oh wait
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OpenStudy (kc_kennylau):
7 and 21 have common factor
OpenStudy (kc_kennylau):
so we could divide both sides by 7?
razor99 (razor99):
yea they have
OpenStudy (kc_kennylau):
-i>-3u?
OpenStudy (kc_kennylau):
can i just take out the negative sign from both sides?
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OpenStudy (kc_kennylau):
anyone?
OpenStudy (kittiwitti1):
Give him time to answer @kc_kennylau
OpenStudy (kc_kennylau):
ok sorry but can you help me?
what to do after -i>-3u can i just take out the negative sign from both sides? :)
razor99 (razor99):
ye
razor99 (razor99):
srry for the late reply i am helping my mom
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OpenStudy (kc_kennylau):
it's fine :)
razor99 (razor99):
yea u can take it
OpenStudy (kc_kennylau):
and do i have to reverse the sign?
OpenStudy (kittiwitti1):
@kc_kennylau, don't forget to give @razor99 a medal (:
OpenStudy (kc_kennylau):
just given :)
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OpenStudy (kc_kennylau):
so the answer is...?
OpenStudy (kittiwitti1):
^_^
OpenStudy (kittiwitti1):
So from what I see, \[\sqrt{-1}=3u\] since i = sqrt -1, am I right?
OpenStudy (kc_kennylau):
that i is just a random variable :)
OpenStudy (kc_kennylau):
and it's not equal it's an ineq
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OpenStudy (kittiwitti1):
Then is it this one\[i\ge3u\]or this one?\[i\le3u\]
I wouldn't know how you'd solve for two unknown variables at once though.
OpenStudy (kc_kennylau):
nah it's just simplifying... (and it's an inequality where equal's not involved)
OpenStudy (kittiwitti1):
Oh. So it's either \[i\lt3u\] or this one?\[i\gt3u\]
OpenStudy (kc_kennylau):
which one?
razor99 (razor99):
Thank u kittiwitti1 C:
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razor99 (razor99):
for helping him
OpenStudy (kc_kennylau):
thanks you guys so much for helping me
OpenStudy (kc_kennylau):
so the answer is?
razor99 (razor99):
AND kC thank u too
OpenStudy (kc_kennylau):
so the answer is...?
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OpenStudy (kittiwitti1):
Well since you divide both sides by negatives, I think the sign stays the same. I don't know which sign you started out with though.
OpenStudy (kittiwitti1):
No, thank YOU @razor99 for providing the foundation! (:
OpenStudy (kc_kennylau):
why don't you guys just tell me the answer....
i started with -i>-3u so it's...?
OpenStudy (kittiwitti1):
\[i\gt3u\]
OpenStudy (kc_kennylau):
don't need to reverse the sign?
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OpenStudy (kittiwitti1):
No, it's only if positive divides by negative, and both sides are negative.
I think.
OpenStudy (kc_kennylau):
ic...
OpenStudy (kc_kennylau):
lemme finish my lunch first my mom is yelling at me outside
OpenStudy (kittiwitti1):
Your lunch? That's late... o_o
OpenStudy (kc_kennylau):
hi i'm back :)
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OpenStudy (kc_kennylau):
@kittiwitti1 so the answer is i<3u?
OpenStudy (kittiwitti1):
Yep should be
OpenStudy (kc_kennylau):
thx so much :)
razor99 (razor99):
Hey guyz check out this one C:
OpenStudy (kc_kennylau):
wt is dat
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razor99 (razor99):
Oh u cant view the real one lol srry
razor99 (razor99):
So there is this person who is saying he needs an i phone 5 to santa clause
razor99 (razor99):
U know what his reply was
OpenStudy (kc_kennylau):
what