24-X=62.5%(30-X)
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24-X=62.5%(30-X)24-X=62.5%(30-X)24-X=62.5%(30-X)24-x=0.625*30-0.625x24-0.625*30=0.375x5.25=0.375xx=1
24-X=62.5%(30-X)
24-X=62.5%(30-X)
24-X=62.5%(30-X)
24-x=0.625*30-0.625x
24-0.625*30=0.375x
5.25=0.375x
x=14
24-X=18.75-0.625X
24-18.75=X-0.625X
5.25=0.375X
X=14
24-x=0.625*30-0.625x
24-0.625*30=0.375x
5.25=0.375x
x=14
太。。。
24-x=18.75-62.5%x
37.5%x=5.25
x=14
24-X=62.5%(30-X)
(x+30)*(x-18)=x*x
(16x-13)/(4x-3)-(20x-24)/(4x-5)=(32x-30)/(8x-7)-(40x-43)/(8x-9)求x
6x-24=30/x 求x的值,
解方程：25x+7=-7+24x ,x=?30x+50=29x-14,x=?
x+6+24=30 x=
30%x=40%x-24
24/(x+30)>0 x=?
2x+[0.8×(24-x)]=30
24x+48=30x-60
4x-2(30-x)=24
x/30+x/24=6,抓紧!
x/30=(x/24)-25
30x+24×(x-0.4)=84.36
（16x-13)/(4x-3)+（40x-43)/(8x-9)=（32x-30)/(8x-7)+（20x-24)/(4x-5)....
（16x-13)/(4x-3)+（40x-43)/(8x-9)=（32x-30)/(8x-7)+（20x-24)/(4x-5)
（X+X)+(X-X)+(X*X)+(X/X)=100
30/x=30/(x-1.5)-x