Question

TWENTY PTS!!!

SOMEBODY HELP ME!!!!
1. d + 7 > 7d + 3 over 3
2.Twice a number, n, subtracted from 36 is less than 15 more than one third the number. Find all possible values for the number.

Answer 1

1.

d + 7 > (7d + 3)/3

3d + 21 > 7d + 3

18 > 4d

d < 18/4

d < 9/2

d < 4.5

2.

36 - 2n < 1/3 * n + 15

36 - 15 < 2 1/3 * n

21 < 7/3 * n

21 * 3/7 < n

9 < n

n > 9