2x=1/2(0.75x+0.5) 怎么解

问题描述:

2x=1/2(0.75x+0.5) 怎么解

4x=0.75x+0.5
4x-0.75x=0.5
3.25x=0.5
x=2/13

2x=1/2(0.75x+0.5)
4x=0.75x+0.5
3.25x=0.5
x=2/13

2x=1/2(0.75x+0.5)
4x=0.75x+0.5
16x=3x+2
13x=2
x=2//13

2x=1/2(0.75x+0.5)
2x=3x/8+1/4
13x/8=1/4
x=2/13