x-(3/4-3/8)=7/8x-3/8=7/8x=7/8+3/8x=10/8x=5/42/5-3/8+x=3/8x=3/8+3/8-2/5x=3/4-2/5x=7/20不明白可追问,答题不易,如满意请采纳,谢谢!
x减3分之1=5分之4 解:x=4/5+1/3x=12/15+5/15x=17/15满意请点击右下角的采纳答案,谢谢了