What is the solution of -4b-2/4a - 3a-1/5b-3 for a=4, b=5?

-4b-2/4a-3a-1/5b-3= ?

(-4b)-(2/4a)-(3a)-(1/5b)-3 = ?

(-4(5))-(.5(4))-(3(4))-(.2(5))-3 = ?

(-20)-(2)-(12)-(1)-3 = -38

-38 is the answer.