Question 1135033
3*(N-14) =  2/3*N

3N - 42 = 2/3* N

9/3N - 42 = 2/3N

7/3N = 42

N = 42(3/7)

N = 18

Check:   
18-14 = 4
4*3 = 12

18(2/3) = 12 CHECK!