Hola! :3
Resolvemos:
4(500 + x) + 2(x) = 5200
2000 + 4x + 2x = 5200
6x = 5200 - 2000
6x = 3200
x = 3200/6
x = 1600/3
x = 533,333...
Espero haberte ayudado :D
Atte: Jean07122006
