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## anonymous 4 years ago Solve for x in the proportion

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1. anonymous

$\frac {3x}{3x-36} = \frac {-1}{x}$

2. anonymous

|dw:1340048726591:dw|

3. anonymous

Nope.

4. anonymous

it has to be one of these. x = 3 and x = −4 x = −3 and x = 4 x = −3 x = −12

5. anonymous

I believe they are right to a point. x(x+1)=12 then set it equal to zero and factor to get the answeres 3 and -4 x^2 + x -12 = 0

6. anonymous

ok rite @mkbeitz and @careless850 thank u so much for correcting me i have just done a step wrong..:)

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