Question

The sum of 9 and c is less than or
equal to 15.

Answer 1

9+c < 15

OR

c < 6

Explanation:

"the sum of 9 and c" means: 9+c

"is less than or equal to 15" means: < 15

If you need to simplify it, then subtract 9 from both sides, and you get

c < 6

Answer 2

less than or equal to -26