5m Zen
X y 3 2x 5y 12
X y 3 2x 5y 12 pictures 5
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X y 3
X y 3 2x 5y 12
1 x y 3 2x 5y 12
x y 3 2x 5y 12 by elimination method
x y 3 2x 5y 12 by substitution method
x y 3 2x 5y 12
