[유사답변]농구시합33회슛61점득점2점슛3점슛으로얻은점수같을때점수별슛성공횟수구하라a+b+c=331점슛점수1*a=a2점슛3점슛점수2b와3c따라서a+2b+3c=61,2b=3c세식연립하면a=
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