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