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