A加B加C等于57 A除以B等于3余1 C除以A等于3余1 A= B= C=
问题描述：
A加B加C等于57 A除以B等于3余1 C除以A等于3余1 A= B= C=
答
A = 3B + 1
C = 3A + 1 = 9B + 4
A + B + C = (3B + 1) + B + (9B + 4) = 13B + 5 = 57
所以,13B = 52,B = 4,A = 13,C = 40