Mathematics
22 Online
OpenStudy (anonymous):
Evaluate the following expression using the values given:
Find 3x - y - 3z if x = -2, y = 1, and z = -2.
-13
-1
1
13
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OpenStudy (anonymous):
what are -13
-1
1
13 these
OpenStudy (anonymous):
they are the multiple choice options
only one is right
OpenStudy (anonymous):
Look :
First get the numbers on the x&z&y
OK ?
For example :
Find 2x-8 if X=15
we have 2(15)-8
30-8=22
Got it ?:)
OpenStudy (anonymous):
yup!
OpenStudy (anonymous):
and now answer this :
find 3x if x=-2
answer :)
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OpenStudy (anonymous):
-6
OpenStudy (anonymous):
Thank u:)
2th question :
Find -y if y=1
answer :)
OpenStudy (anonymous):
I thinks its -13 for the whole thing
OpenStudy (anonymous):
No ...
Look ...
answer with that .write y in ( )
-( )
(just write y )
OpenStudy (anonymous):
-(y)
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OpenStudy (anonymous):
I meant -(+1)=-1
OK ?
OpenStudy (anonymous):
You know :
(-).(-)=+
So find -3z if z=-2
OpenStudy (anonymous):
6
OpenStudy (anonymous):
oK !
Now answer the first question u said again .
If want help say :)
OpenStudy (anonymous):
13! a negative + a negative equals a positive!
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OpenStudy (anonymous):
and . for that matter
(x)
OpenStudy (anonymous):
3(-2)-(1)-3(-2)
-6-1+6
-7+6
-1
OpenStudy (anonymous):
wow im dumb
OpenStudy (anonymous):
Look :
(u answered to your self :) )
But write it wrong :)
I think your smart boy :)
OpenStudy (anonymous):
@UditKulka:Thank u :)
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OpenStudy (anonymous):
welcome
OpenStudy (anonymous):
thx guys...
:(
OpenStudy (anonymous):
u didnt got it ?
OpenStudy (anonymous):
i sort of did but my brain goes haywire when theres a big problem
OpenStudy (anonymous):
never :)