Question 280887
L=4W-5
2L+2W=90
2(4W-5)+2W=90
8W-10+2W=90
10W=90+10
10W=100
WE=100/10
W=10 ANS. FOR THE WIDTH.
L=4*10-5=40-5=35 ANS. FOR THE LENGTH.
PROOF:
2*35+2*10=90
70+20=90
90=90