Question 884347
L length
w width


L=7+2w and 2w+2L=68.
SUBSTITUTE!


2w+2(2w+7)=68
w+2w+7=34
3w=34-7
3w=27
<b>w=9</b>
 
.
.
L=2w+7
L=2*9+7
L=18+7
<b>L=25</b>