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