5m Zen
2y x 4x
2y x 4x pictures 5
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2y x
2y x 4x
3 x 2y 4x
4x 2y u2212 3x x 5y
x y and 4x 2y arithmetic sequence
x 2y 3 4x 8y 12
4x 2y )+ 3y 2 x
2y x 4 4x 3y 5
x 2y 2 4x 8y
dy dx 2y x 4x
2y x 4x 3y 5
2y x 4x
