Question 220869
L=W+5
2L+2W=18
2(W+5)+2W=18
2W+10+2W=18
4W=18-10
4W=8
W=8/4
W=2 ANS. FOR THE WIDTH.
W=2+5=7 ANS. FOR THE LENGTH.
PROOF:
2*7+2*2=18
14+4=18
18=18