(2x+1)/0.25-0.2(x-1)/0.3=1怎么解?
问题描述：
(2x+1)/0.25-0.2(x-1)/0.3=1怎么解?
答
(2x+1)/0.25-0.2(x-1)/0.3=1
4（2x+1)-2/3(x-1)=1
乘以3得24x+12-2x+2=3
24x-2x=3-12-2
22x=-11
x=-0.5谢谢，不过我题目不小心打错了，正确的是(2x+1)/0.25-0.2(x-2)/0.3=1(2x+1)/0.25-0.2(x-2)/0.3=14（2x+1)-2/3(x-2)=1乘以3得12(2x+1)-2(x-2)=324x+12-2x+4=324x-2x=3-12-422x=-13x=-13/22