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