Question 349795
L=5W-4
2L+2W=76
2(5W-4)+2W=76
10W-8+2W=76
12W=76+8
12W=84
W=84/12
W=7 ANS. FOR THE WIDTH.
L=5*7-4=35-4=31 ANS.  FOR THE LENGTH.
PROOF:
2*31+2*7=76
62+14=76
76=76