⑴0.75x=1.25×2
x=10/3
0.75:1.25=2:10/3
⑵1.25x=0.75×2
x=1.2
0.75:1.2=1.25:2
⑶2x=0.75×1.25
x=0.46875
0.46875:0.75=1.25:2
共3种.
愿对你有所帮助!