10(x-3/0.5)-10(x+4/0.2)=1.6*10得2(x-3)-5(x+4)=162x-6-5x-20=16-3x=42x=-14
题目看不清,请把分子分母分别用括号括起来
化简为;x-6-x+2=1.6 0=5.6∴x=0
无解的
X=—61/87