4x-2分之3x-4=5
问题描述:
4x-2分之3x-4=5
答
4x-2分之3x-4=5
4x-1.5x-4=5
2.5x-4=5
2.5x=5+4
2.5x=9
x=9÷2.5
x=3.6是4x-(2分之3x-4)=54x-(2分之3x-4)=54x-(1.5x-4)=54x-1.5x+4=52.5x=5-42.5x=1x=1÷2.5x=0.4分数线上面是3x-4,分数线下面是24x-(2分之3x-4)=54x-(1.5x-2)=54x-1.5x+2=54x-1.5x=5-22.5x=3x=3÷2.5x=1.2