Engineering Economy 7th Edition by Leland Blank ,Anthony Tarquin

Exercise 41

In cleaning out some files that were left behind by the engineer who preceded you in your current job, you found an old report that had a calculation for the present worth of certain maintenance costs for state highways. The report contained the following equation (with cost in $1 million):
12{1 [(1 + 0.03)/(1 + 0.06)] x }/(0.06 0.03) = 140 The value of x that was used in the calculation was illegible. What is its value