0.25*2x-0.25*1-1=0.75*1-0.75*2x0.5x-0.25-1=0.75-1.5x0.5x 1.5x=0.75 0.25 12x=2x=1
0.25(2x-1)-1=0.75(1-2x)0.5x-0.25-1=0.75-1.5x1.5x+0.5x=0.75+0.25+12x=2x=1 不懂可追问，有帮助请采纳，谢谢！
