2x/3+1/2=7/82x/3=7/8-1/22x/3=7/8-4/82x/3=3/8x=3/8/(2/3)x=3/8*3/2x=9/16请采纳,不懂可追问,谢谢
3分之2x+2分之1=8分之7两边同时乘以2416x+12=21 16x=21-12 16x=9 x=9/16 如果帮到你,请记得采纳,O(∩_∩)O谢谢
解:2x/3=7/8-4/82x/3=3/8x=3/8*3/2x=9/16