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How do you solve |3x+6|=x
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Chandni002

by Chandni002 at January 26, 2010

I asked my teacher and the answer is
There is no solution.

Does anyone know how? Cause I'm pretty sure that's wrong.

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First, get rid of the || signs and instead put +-. We have:+-(3x+6) = x.Let's solve each separately. We'll deal with the + case first.3x+6 = x2x+6 = 02x = -6x = -3Now for the - case:-3x-6 = x-4x-6 = 0-4x = 6x = -3/2So our answer is x = -3 or -3/2.
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wrathofmobius wrathofmobius January 26, 2010

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you subtract 3x from both sides so you have l 6 l= -2x then you divide by -2 so x= l -3 l which equals 3!!! so the answer is x=3
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kendall016 kendall016 January 26, 2010

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