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anonymous
 one year ago
I'm trying to do an absolute value equation.
4x – 5 – 3x = 2x + 9
I have already solved the positive case of the solution and got 14. But I'm struggling with the negative case: 4x – 5 = 5x  9 (is THAT even right?)
It seems like no matter what I do, none of the numbers I come up with fit. Is this an example of an extraneous solution, or can someone help me find x's value?
anonymous
 one year ago
I'm trying to do an absolute value equation. 4x – 5 – 3x = 2x + 9 I have already solved the positive case of the solution and got 14. But I'm struggling with the negative case: 4x – 5 = 5x  9 (is THAT even right?) It seems like no matter what I do, none of the numbers I come up with fit. Is this an example of an extraneous solution, or can someone help me find x's value?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Tried to do it again by setting it up to equal 0. Can anyone confirm this? 4x – 5 = 5x – 9 4x – 5 – (5x 9) = 0 9x + 4 = 0 Subtract 4: 9x = 4 Divide by 9: x =4/9

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1\[4x53x=2x+9\]\[4x53x+3x=2x+3x+9\]\[4x5=(5x+9)\]\[(4x5)=\pm (5x+9)\]equation 1\[4x5=5x+9\]and equation 2 \[4x5=(5x+9)\]

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1for equation 1 we get \[4x5=5x+9\]\[59=5x4x\]\[14=x\]

LynFran
 one year ago
Best ResponseYou've already chosen the best response.1for equation 2 we get \[4x5=(5x+9)\]\[4x5=5x9\]\[5+9=5x4x\]\[4=9x\]\[\frac{ 4 }{ 9 }=x\]
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