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Va rog urgent dau coroana!!!

Va Rog Urgent Dau Coroana class=

Răspuns :

a+b=146,   a=146-b
b+c=100,   c=100-b
13a+3b+2c=1582
13(146-b) +3b + 2(100-b)=1582
1898 - 13b +3b + 200 - 2b = 1582
1898+200-1582=13b -3b +2b
516=12b
b=516:12=43
b=43

a=146-43=103
c=100-43=57