85.5*x+69*（1-x）=76
    148.43=60×X/(158.46+60-X)
    148.43=60×X/(154.46+60-X)
    149.58=60×X/(157.16+60-X)
    148.14=60×X/(158.35+60-X)
    142.85=60×X/(158.62+60-X)
    256x^2-96x+17＝0
    0.8x/234-x=0.5
    1800=260x-2xx-6450
    2.78y/(1400+y)＝0.05
    4800÷x-4800÷（x-200）=4
    4800÷x-4800÷x-200=4
    x0.17+x=13800
    (64/5)^2-64-x^2＝(x+8)^2
    3x²-5x+1＝0
    2+46x=16(0.5+x)
    2*x^3+x^2-x+1=0
    X/1-X=200/300
    2(21+2x)(15+x)+2x=875
    -10x²-100x-240=0

Home page << page2173 page2174 page2175 page2176 page2177 ... ... page2179 page2180 page2181 page2182 page2183 >> Last page 31249 pages in total