6 2n 4 5 )- 3 2 3n 9 July 8, 2019 16 32 64 128 6) 5(n - 2) - 6(n + 3) - 3(2n - 9) 6) 4(5 - n) - 3(2n + 7) = 0 6 9 - 9n =-5n-33 1 2 + 3 + 4 + 5 + 6 2 6n-1 3n+5 7n-2 9
