Find Reactions:

$M_{RL}=0$ :

$-2000$#$6ft+2000$#$xfft+2000$#$18ft+2000$#$30ft+2000$#$x42ft+$

$2000$#$54ft+2000$#$66ft+2000$#$78ft-R_{R}60ft=0$

$R_R=9600$# and $F_y=0$:$R_L=6400$#