Question 1050680
J is 2L, we can express this as:
J = 2L We'll use this value for J next
J+3+L+3 = 54 Substitute for J
2L+3+L+3 = 54
3L+6 = 54
3L = 48
L = 48/3 = 16 Lacy is 16
and 
J = 2L = 2(16) = 32 Jacky is 32