求未知数X .3.2/3X=0.53.2除以3X =0.5
问题描述:
求未知数X .3.2/3X=0.5
3.2除以3X =0.5
答
两边同乘以3x,3.2=1.5x,x=3.2/1.5=32/15
答
3.2/3x还是2/3x?
3.2/3x=0.5
x=0.5x15/16
x=1/2
2/3x=0.5
x=0.5x3/2
x=3/4