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96=4(3x-2+x+1+x)
96=4(5x-1)
96 =20x-4
96+4=20x
100=20x
x=100/20
x=5
p=3x-2
=3.5-2
=15-2
=13
l=x+1
=5+1
=6
t=5
volume balok=p.l.t
=13.6.5
=390 cm
=3,9 m.