The best way to solve this is to do this step by step.
Let x = the number
Identify the word problem of the inequality.
Two fifths of one less than a number
= 2/5 (x-1)
Three fifths of one more than that number
= 3/5 (x+1)
Solve the inequality
2/5 (x-1) < 3/5 (x+1)
2x/5 - 2/5 < 3x/5 +3/5
-2/5 -3/5 < 3x/5 - 2x/5
-1< x/5
-5 < x
or
x > -5
The final solution set is B. x > -5
