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panjang = 2x-5
panjang kawat = 62 cm
panjang kawat = keliling
keliling= 2(p+l)
keliling = 2(2x-5+x)
62 cm= 2(3x-5)
62 cm = 6x-10
62+10= 6x
6x= 72
x= 72/6
x= 12
jadi, lebar persegi panjang adalah 12 cm