Answer :
L = W + 5
2L + 2W = 18
2 (W+5) + 2W = 18
2W + 10 + 2W = 18
4W = 18 - 10
4W = 8 ÷ 4
~~~~~~~~~~~~~~~~~~~~~~
W = [tex] \frac{8}{4} [/tex] = [tex] \frac{2}{1} [/tex] = 2
L = 2 + 5 = 7
Width = 2 cm
Length = 7 cm
2L + 2W = 18
2 (W+5) + 2W = 18
2W + 10 + 2W = 18
4W = 18 - 10
4W = 8 ÷ 4
~~~~~~~~~~~~~~~~~~~~~~
W = [tex] \frac{8}{4} [/tex] = [tex] \frac{2}{1} [/tex] = 2
L = 2 + 5 = 7
Width = 2 cm
Length = 7 cm