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l=(x+2)cm
kll=34cm
p & l =? (cari nilai x)
kll= 2p +2l
34= 2(2x-3)+2(x+2)
34= 4x-6+2x+4
34= 6x-2
34+2=6x
36=6x
x=6
p=(2x-3)
=2(6)-3
=12-3
=9cm
l=(x+2)
=6+2
=8cm
jadi panjang dan lebar persegi panjang adalah 9cm dan 8cm