jasmineambriz55049 jasmineambriz55049 10-01-2020 Mathematics contestada 12. 17g + 149-69 +g = 13. 13 + 12 -12 + 13x = 14. 17s - 3s + 3s = 15. 14t - 12t + t = (Directions:simplify by combining like terms in each of the following expressions) I hope you guys can help i really appreciate it (Offering 15 points)