1,3y=x
х-y=12
1,3у-у=12
0,3y=12
у=40
х=1,3*40=52
Ответ: (52; 40)
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1,3y=x
х-y=12
1,3y=x
1,3у-у=12
1,3y=x
0,3y=12
1,3y=x
у=40
х=1,3*40=52
у=40
Ответ: (52; 40)