kalebwaterman75 kalebwaterman75 05-01-2023 Mathematics contestada Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8. Simplify Q + S - T. 8m - 7n - 3 8m + 7n - 3 -8m - 7n - 3 -8m + 7n - 3