Respuesta :

HybridDemon
let x be the width 
and 5x-11 the length 
so the equation is: 
5x-11+x+5x-11+x=122

12x-22=122
12x=144
x=12 
so width is 12 and so lenght is 5*12-11=49 
and now u can check 49+12+49+12=122