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OpenStudy (anonymous):
\[\frac{ x+a }{ ax }=\frac{ b }{ x }\]
OpenStudy (anonymous):
@Napolions
OpenStudy (anonymous):
a=2 and b=3
OpenStudy (anonymous):
what up
OpenStudy (anonymous):
can i get a picture
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OpenStudy (anonymous):
ther isnt a picture its just the equation.......
OpenStudy (anonymous):
alright so which part u need elp with 1 or 2
OpenStudy (anonymous):
help
OpenStudy (anonymous):
both...
OpenStudy (anonymous):
\[\frac{ x+2 }{ 2x }=\frac{ 3 }{ x }\]
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OpenStudy (anonymous):
alright so do you want to find the variable x
OpenStudy (anonymous):
is it 4?
OpenStudy (anonymous):
yes nice job
OpenStudy (anonymous):
it was 3/4
OpenStudy (anonymous):
wat was 3/4?
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OpenStudy (anonymous):
the answer it was 3 over 4
OpenStudy (anonymous):
how?....... i got 4.....
OpenStudy (anonymous):
2+x =3 and 2x =4
OpenStudy (anonymous):
call my name when you need help
OpenStudy (anonymous):
wait how did u get that???
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OpenStudy (anonymous):
@Napolions
OpenStudy (anonymous):
what up
OpenStudy (anonymous):
adding 1 up top and multiplying 2 at the bottem
OpenStudy (anonymous):
im confused.........
so first u multiply both sides by 2x.......then it gets canceled......
leaving \[x+2=\frac{ 3 }{ x }2x\]
OpenStudy (anonymous):
which is \[x+2=6\]
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OpenStudy (anonymous):
now your confusing me
OpenStudy (anonymous):
@Tazmaniadevil
OpenStudy (anonymous):
and then u subtract 2 on both sides and get 4
\[x=4\]
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
so thats the first part right?
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OpenStudy (anonymous):
yes
OpenStudy (anonymous):
ok wat about the second part???
OpenStudy (anonymous):
An extraneous solution is a root of a transformed equation that is not a root of the original equation because it was excluded from the domain of the original equation.
OpenStudy (anonymous):
that is how you identify it
OpenStudy (anonymous):
@plzzhelpme
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OpenStudy (anonymous):
i didnt get that @Napolions
OpenStudy (anonymous):
this website should help u
Extraneous Solutions - Hotmath
hotmath.com/hotmath_help/topics/extraneous-solutions.htm
OpenStudy (anonymous):
i mean this one
Extraneous Solutions - Hotmath
hotmath.com/hotmath_help/topics/extraneous-solutions.htm
OpenStudy (anonymous):
ya that page isnt opening...... @Napolions
OpenStudy (anonymous):
go to google and type in extraneous solutions and it is under the one that say hot math
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OpenStudy (anonymous):
wait i think i did it wrong........
\[\frac{ x+2 }{ 2x } =\frac{ 3 }{ x }\]
\[ 3(2x)= x(x+2)\]
\[6x=2x+2x\]
\[6x=4x\]
@Napolions
OpenStudy (anonymous):
cross multiplication??
OpenStudy (anonymous):
think so
OpenStudy (anonymous):
im totally confused rn.........
OpenStudy (anonymous):
@Napolions
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OpenStudy (anonymous):
what up
OpenStudy (anonymous):
wat do i doo???>.........
OpenStudy (anonymous):
x_x
OpenStudy (anonymous):
how does this sound???
x(x+1) = 2x
x^2 + x = 2x
x^2 -x = 0
x(x-1)=0
x=0 or x=1
the x=0 is extraneous, because we are not allowed to divide by 0
(which is what happens in the original equation if x is 0)
OpenStudy (anonymous):
i made a mistake in my previous problem....i did x*x is 2x butits x^2
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OpenStudy (anonymous):
ok so make the x 1
OpenStudy (anonymous):
it was
x+22x=3x
3(2x)=x(x+2)
6x=x^2+2x
\[x^2+2x-\left(6x\right)=6x-\left(6x\right)\]
OpenStudy (anonymous):
\[x^2-4x=0\]
OpenStudy (anonymous):
are u checking to see if you are right do you need my help