Pamiethehelper12 Pamiethehelper12 10-05-2016 Mathematics contestada 5. 3x-X-7=3 6.3x-3-X=3 7. -1 - 2x +3x=5 8. 3x - 22 - X=6 9. 2x+3x-10=10 I need proof on 5 and 8 please!! ❤️❤️