Mathematics
12 Online
OpenStudy (anonymous):
find UV @stgreen
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OpenStudy (anonymous):
OpenStudy (anonymous):
@stgreen
OpenStudy (anonymous):
@agent0smith CAN U HELP ME PLEASE??
OpenStudy (agent0smith):
It's an angle bisector, so UQ and UV are equal. So...
5x + 9 = 7x + 1
OpenStudy (anonymous):
THTS All i have to write?
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OpenStudy (agent0smith):
Well no, you have to solve for x. And then once you find x, find the length of UV, which is
UV = 7x + 1
OpenStudy (anonymous):
so wat i do after
OpenStudy (anonymous):
5x + 9 = 7x + 1
-9 -9
5x=7x-8
11x=-8? @agent0smith
OpenStudy (agent0smith):
How'd you get 11x?
OpenStudy (anonymous):
added the two x's
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OpenStudy (anonymous):
12x
OpenStudy (agent0smith):
It won't be 12x from this:
5x = 7x - 8
OpenStudy (anonymous):
oh!
OpenStudy (agent0smith):
What'd you get?
OpenStudy (anonymous):
im not sure wat to do after
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OpenStudy (agent0smith):
After what? You need to get all the x's on one side of this equation:
5x = 7x - 8
OpenStudy (anonymous):
so i just add them or wat?
OpenStudy (agent0smith):
Do the same thing you did earlier with the 9, but with the x. Like this
5x + 9 = 7x + 1
-9 -9
5x=7x-8
OpenStudy (anonymous):
mhm i know
OpenStudy (anonymous):
but right here 5x=7x-8 i jus leave it like tht?
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OpenStudy (agent0smith):
No, what did you do with the 9... you subtracted it from both sides, right? Now try that to get all the x's on one side.
OpenStudy (anonymous):
do i suntract 7x ?
OpenStudy (agent0smith):
Yes
OpenStudy (anonymous):
i get -2x
OpenStudy (agent0smith):
So now what does your equation look like?
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OpenStudy (anonymous):
-2x=-8
x=4
OpenStudy (agent0smith):
Correct! Now don't forget the question was asking for the length of UV
OpenStudy (anonymous):
:o wat question
OpenStudy (agent0smith):
The question that you asked at the start
OpenStudy (anonymous):
oh thts uv >
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OpenStudy (agent0smith):
So what did you get for UV?
OpenStudy (agent0smith):
Remember UV = 7x + 1