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What does x4X3x=?

What does 2x-9=21-4x?

Guest May 15, 2017
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x*4*3x = 4x*3x=12x2

 

2x-9=21-4x  |+4x

6x-9=21       |+9

   6x=30       | :6

     x=5

laugh

Omi67  May 15, 2017

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