-250x^(2)+27500=7000
    arctan(10.42*x)+arctan(2*x)=180
    arctan(10.42*x)+arctan(2*x)=π
    -5x^(2)+800x-27500<7000
    -5x^(2)+800x-27500=7000
    2y/7+3/4=1/7
    （x+1）√2＝1
    ln2x-2x+2=0
    5×32%=x
    x+x×4.9%×2=16470
    x+x×4.9%2=16470
    3x×3=8
    3x×3=8x×2
    e^x=0.0625
    5x=949
    5x=94949
    100/(1+7%+a)=1
    x+x×4.9=8235
    0.9x+0.22x=400
    12x^2+40x+15=0

Home page << page30954 page30955 page30956 page30957 page30958 ... ... page30960 page30961 page30962 page30963 page30964 >> Last page 31249 pages in total