Flare199 Flare199 Today at 2:55 PM Mathematics Answered Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8. Simplify [Q - R] + [S - T]. A 10m + 5n - 24 B 10m - 5n + 24 C 10m + 7n - 14 D 10m - 7n - 14