3x+4x=14
7x=14/:7
x=2
jeden bok - 3x=6
drugi bok - 4x=8
P=a*b=6*8=48cm²
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3x+4x=14
7x=14/:7
x=2
jeden bok - 3x=6
drugi bok - 4x=8
P=a*b=6*8=48cm²