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