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32 = 2 ( 2x-5 + x-6 )
32= 4x-10 + 2x-12
32= 6x-22
32+22= 6x
54= 6x
54/6 = x
9 = x
panjang = 2 x 9 -5 : 13 cm
lebar = 9 - 6 : 3 cm
luas : 13 cmx 3 cm =39 cm