Question 115716
L=2W-7
P=2L+2W
61=2(2W-7)+2W
61=4W-14+2W
6W=61+14
6W=75
W=75/6
W=12.5 ANSWER.
L=2*12.5-7
L=25-7
L=18 ANSWER.
PROOF
61=2*18+2*12.5
61=36+25
61=61