5m Zen
2x 3y x y 9
2x 3y x y 9 pictures 5
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2x 3y x
2x 3y x y 9
x 3y 8 y 2x 9 substitution
2x 3y 9 x y 3
2x 3y 32 y x 9
2x y 5 0 x 3y 9 0
x 3y 9 2x y 4
x y 7 2x 3y 9 substitution method
2x y 9 x 3y u003d- 6
x y 7 2x 3y 9
2x 3y u003d- 12 x y 9
2x 3y x y 9
