Will Medal Please help solve for x: x-1/1+2 = 2/x

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Will Medal Please help solve for x: x-1/1+2 = 2/x

Mathematics
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can you draw it, do not understand what you are solving...
solve for x: \[\frac{ x-1 }{ x+2} = \frac{ 2 }{ x }\]

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Other answers:

multiply both sides by \((x+2)x\) [or cross multiply, as it is called, though it is the same thing...]
i am going with cross, x(x-1) = 2(x+2)
great
ok, then
multiply out and combine terms to get a quadratic
x^2 - 1x = 2x+4
then?
then \(x^2 - 3x - 4 = 0\) and now factor
= (x+1) (x-4)
4 and -1
@Adi3 good stuff tip: in an exam, i would actually take those numbers and put them back into the original equation just to be triply sure :p
how would you do that??
@IrishBoy123 Labhraíonn tú Gaeilge? Ansin, is féidir leat cabhrú liom ... Ní féidir leat?
oh is it foil??
check these \(\frac{ -1-1 }{ -1+2} = \frac{ 2 }{ -1 }\) ??? \(\frac{ 4-1 }{ 4+2} = \frac{ 2 }{ 4 }\) ???
@IrishBoy123 Dhíth orm desperately do chabhair . Níorbh fhéidir leat le do thoil cabhrú liom nuair a fhaigheann tú an deis ? Tá sé éadóchasach .
wht did you just do??
plugged your answers into the original equation you were given...
ie plug 4 and -1 into \(\frac{ x-1 }{ x+2} = \frac{ 2 }{ x }\) to check them....
how would you plug two equations in x?
i will be around and about later, feel free to tag.
put them in separately so for x = 4 \(\frac{ x-1 }{ x+2} = \frac{ 2 }{ x } \implies \frac{ 4-1 }{ 4+2} = \frac{ 2 }{ 4 }\) that is \(\frac{3}{6} = \frac{2}{4} \checkmark\)
ok, medal me pls.
@IrishBoy123 Hilfe bitte?

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