Question 921067
perimeter  = 2 times the sum of length and width
            = 2*( length+width)
 32 = 2*(4 +width)
 divide with 2 on both sides
 32/2  = 2/2 * (4+width)
 16 =    4 +width
  subtract 4 on both sides
 16-4 = 4+width -4
 12 = width 
width  = 12 inches