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perimetro= 540
Ancho= x
Largo= 2x+30
2(x)+2(2x+30)=540
2x+4x+60=540
6x+60=540
6x=480
x=80
Reemplazamos:
Largo= 2x+30
2(80)+30
160+30=190
Rpta: El largo mide 190m.
Ancho: x
Largo: 2x+30
Formulamos la ecuacion:
x+2x+30+x+2x+30=540m
6x=540-60
x=480/6
x=80
Entonces:
Ancho:80m
Largo:2x+30 reemplazamos: 2(80)+30=190m
Respuesta el largo es 190m