Question 263469
L=W+9
2L+2W=26
2(W+9)+2W=26
2W+18+2W=26
4W=26-18
4W=8
W=8/4
W=2 ANS. FOR THE WIDTH.
L=2+9=11 ANS. FOR THE LENGTH.
PROOF:
2*11+2*2=26
22+4=26
26=26