[HELP]problem in Second equation of Equilibrium

[dcubed]

[HELP]problem in Second Condition of Equilibrium

1. Homework Statement :

The axles of a 2400 lb car are 7 ft apart. if the centr of gravity of the car is 3 ft behind the axle, how much weight is supported by each of the car's wheels? II
2. Homework Equations

I'm not sure. i scanned my notes, then i found this equation
TF1+TF2=0
3. The Attempt at a Solution

i don't also have any idea about this. but my classmates told me that the answers are 686lb and 514lb

i can't solve for this because i don't know what the appropriate legends for them. whether Torque 1? or whatsoever. :|

 

[dcubed]

i need your help until this day because this is our take home quiz. thanks to those who will solve the problem for me. :)