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2x 3y 5 2x 3y 7
2x 3y 5 2x 3y 7 pictures 5
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2x 3y 5
2x 3y 5 2x 3y 7
2x 3y 5 2x 3y 7
2x 3y 5 2x 3y 7 by substitution method
