12*x=51*y x+y=812乘以X等于51乘以YX加以Y等于8
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12*x=51*yx+y=812乘以X等于51乘以YX加以Y等于812*x=51*yx+y=812乘以X等于51乘以YX加以Y等于812*x=51*yx+y=812乘以X等于51乘以YX加以Y等于81
12*x=51*y x+y=812乘以X等于51乘以YX加以Y等于8
12*x=51*y x+y=8
12乘以X等于51乘以Y
X加以Y等于8
12*x=51*y x+y=812乘以X等于51乘以YX加以Y等于8
12*x=51*y 得4x=17y即x=17y/4
代入x+y=8得
17y/4+y=8
解得y=32/21,x=136/21
12*x=51*y x+y=812乘以X等于51乘以YX加以Y等于8
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