5m Zen
4y 3 3y 1
4y 3 3y 1 pictures 5
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4y 3 3y 1
12 3y 1 )- 3 4y 2
2 3y u003d- 1 3 4y 0
2 y 3 3y 4y 1
3 1 3y )u003d 2 (- 4y 7
3y 1 4y u2212 3 2y
2 3y 3 1 4y 1
3 3y 1 )+ 4y u003d- 23
4y 3 3y 1
