Answer:
Remain gravel = (3x - 27) pound
Explanation:
Given:
Number of bags Kevin have = 3
Used gravel = 27 pound
Find:
Remain gravel
Assume;
Each bag carry x pound of gravel
So,
Total gravel = 3x
Remain gravel = Total gravel - Used gravel
Remain gravel = (3x - 27) pound