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