A+ B= 82 ,C+ B= 64 ,C+ A= 48 A=?B=?C=?
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A+ B= 82 ,C+ B= 64 ,C+ A= 48 A=?B=?C=?
A+ B= 82 ,C+ B= 64 ,C+ A= 48 A=?B=?C=?
A+ B= 82 ,C+ B= 64 ,C+ A= 48 A=?B=?C=?
A=82-B
C=64-B
带入第三个算式:
(64-B)+(82-B)=48
B=49
带入第一,二个算式:
A+49=82
C+49=64
则:A=33
B=15
C=49