Method of Joints: Solving for Fab in a Truss Structure

[JeeebeZ]

Homework Statement

Everything is in the PDF
View attachment Mech hw Q 3.pdf

Homework Equations

The Attempt at a Solution

So once I get to the last 2 joints Then all I have left to solve for is Fab.
I get different numbers each way i try to figure it out.
So I know I'm doing something wrong.
Any ideas?

 

[JeeebeZ]

i got it solved... thanks anyway people