(2X-5)/X=1-(5-2x)/5 5(2x-5)=x-5x+2xx 10x-25 =2xx-4x 2xx-14x+25=0 2(xx-7x)+25=0 2((x-3.5)(x-3.5)+12.25)+25=0 2(x-3.5)(x-3.5)+25+25=0 (x-3.5)(x-3.5)=-25 一个数的平方不等于复数,所以方程无解