χ-0.125χ=8
7X/8=8
X=8*8/7
X=64/7
χ-0.375χ=5/6
5X/纯坦8=5/6
X=5/6*8/5
X=4/基喊3
2/3﹙χ-4.5﹚搏裤野=7
X-4.5=7*3/2
X-4.5=10.5
X=4.5+10.5
X=15
χ-0.125χ=8
8x-x=64
7x=64
x=64/7
χ-0.375χ=5/6
5/8x=5/灶基竖隐大6
x=4/3
2/3﹙χ-4.5﹚=锋余7
2(x-4.5)=21
2x-9=21
2x=30
x=15
X(1-1/迟仔8)=8 x=64/乱盯7
x(1-3/8)=5/哗旦和6 x=4/3
x-4.5=21/2 x=15
9.1429
1.3333
15
求采纳
64/7
20/9
15
题目什么意思?要求是什么?