关于x的分式方程2x/(x-3)-2=5/(x-m),
去分母得2x(x-m)-2(x-3)(x-m)=5(x-3),
2x^-2mx-2[x^-(3+m)x+3m]=5x-15,
x=6m-15,
它的解为正数,
即6m-15>0,
∴m>2.5,为所求.
关于x的分式方程2x/(x-3)-2=5/(x-m),
去分母得2x(x-m)-2(x-3)(x-m)=5(x-3),
2x^-2mx-2[x^-(3+m)x+3m]=5x-15,
x=6m-15,
它的解为正数,
即6m-15>0,
∴m>2.5,为所求.