Question 437709
A rectangle has a perimeter of 36inches the width is four inches bigger then length. 
what's the length 
:
The perimeter equation
2L + 2W = 36
:
It say's,"the width is four inches bigger then length.", therefore:
W = (L+4)
:
Replace W with (L+4) in the perimeter equation
2L + 2(L+4) = 36
simplify, divide by 2:
L + (L+4) = 18
2L = 18 - 4
2L = 14
L = {{{14/2}}}
L = 7 inches is the length
:
:
Check this, width 4 inches more:  11 inches
2(7) + 2(11) = 36