Odpowiedź:
a) 2a+2b+2c= 2*8+2*6+2*7=42
b) 2a+2b= 2*12+2*8=40
c) 2a+2b+2c= 2*15+2*7+2*4=52
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Odpowiedź:
a) 2a+2b+2c= 2*8+2*6+2*7=42
b) 2a+2b= 2*12+2*8=40
c) 2a+2b+2c= 2*15+2*7+2*4=52