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