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| 20-20x=16 | | 20-20x=15 | | 20-20x=14 | | 20-20x=13 | | 20-20x=12 | | 20-20x=11 | | 20-20x=10 | | 20-20x=9 | | 20-20x=8 | | 20-20x=7 | | 20-20x=6 | | 20-20x=5 | | 20-20x=4 | | 20-20x=3 | | 20-20x=2 | | 20-20x=1 | | 20-19x=20 | | 20-19x=19 | | 20-19x=18 | | 20-19x=17 | | 20-19x=16 | | 20-19x=15 | | 20-19x=14 | | 20-19x=13 | | 20-19x=12 | | 20-19x=11 | | 20-19x=10 | | 20-19x=9 | | 20-19x=8 | | 20-19x=7 | | 20-19x=6 | | 20-19x=5 |