5m Zen
5 2x ) ( 7 10x
5 2x ) ( 7 10x pictures 5
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5 2x ) ( 7 10x
10x 5 2x 9 5x 7
7 2x 5 )u003d 10x 47
9 10x 7 2x 5
2x 7 3x 6 10x 5
10x 2x 5 8x 4x 7
8 2x 7 )+ 5 10x 1
5 (- 2x 7 )+ 3 u003d- 10x 38
5 2x 7 )u003d 10x 35
5 2x )-( 7 10x
