2x-y/6=14x+4y-5x+5y=-38-x+9y=-38-x=-38-9yx=38+9y2(38+9y)-y/6=176+18y-y/6=118y-y/6=-7517又5/6y=-755/6y=-92y=-110.4x=955.6希望对你有帮助
方程1两边乘6得12x+y=6方程2分解得9y-x=-38合并得x=92/109，y=-450/109
