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1 2x 2 4x 5 0
1 2x 2 4x 5 0 pictures 5
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1 2x 2 4x 5 0
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1 2x 2 11 4x 5 4 0
3 2x 5 )- 2 4x 1 )u003d 0
5 2x 1 )+ 7 4x 2 )u003d 0
1 2x 2 4x 5 0
