So what I thought to do is first find out what number times 12 equals 48. I divided 48 by 12 to get 4. So we know that the problem in the parenthesis has to equal 4. Since you're subtracting from a number smaller than 4, your answer will be a negative number, -1.
Well lets try using negatives and positives, negatives for underground positives for above. -6 + 14 = 8 then 8 - 11 = -3. When Herman finally stops climbing he is 3 feet below ground level.