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