您好,【数学来吧】为你解答:(3/4-25%) X =120.5X =12 X=24请采纳,谢谢!
0.75x-0.25x=120.5x=12x=24
3/4x-1/4x=121/2x=12x=24
3/4x-25%x=(3/4-1/4)x=1/2x=12,则x=24
x=24