10000/（x+99*0.12)+6700/(x+99*0.12)+10000/(x+99*0.12)+10000/(x+99*0.12)=250
    7600/（x+99*0.12)+6700/(x+99*0.12)+10000/(x+99*0.12)=150
    x^2-24x=52
    6700/（x+99*0.12)+6700/(x+99*0.12)+10000/(x+99*0.12)=150
    x^2-24x=26
    10000/（x+99*0.12)+6700/(x+99*0.12)+10000/(x+99*0.12)=150
    10000/（x+99*0.12)+6700/(x+99*0.12)+10000/(x+99*0.12)=250
    x2-24x=26
    3a^2-4a+6=0
    x2+2/x
    （1-x^2）^（1/2）
    x^3-x^2+1/4=0
    (y+1)/(y+2)+(y+8)/(y+9)=(y+2)/(y+3)+(y+7)/(y+8)
    (x+1)(x+2)=(x+3)(x+4)
    0.|1x=1/x
    x+1/2(x-1)+1/4(x-2)=1/8(x-3)+1/16(x-4)+1/32(x-5)
    2/3(x-2)+5/7(2x-3)=10/21(x-2)-17/21(2x-3)
    X^3-2X^2=144
    1/3(3/5(5/7(7/9(1+a)+a)+a)+a)+a=1/3(3/5(5/7(7/9(1-a)-a)-a)-a)-a-100/9%
    x+1=x+1

Home page << page818 page819 page820 page821 page822 ... ... page824 page825 page826 page827 page828 >> Last page 31237 pages in total