Respostas

2014-08-24T23:12:13-03:00
 \left \{ {{L+D=810} \atop {L-D=44}} \right.
_________
2D = 854
d = 854/2
d = 427

L+D=810
L+427 = 810
L=810-427
L= 383

S={(427,383)}