x^2+x-1=0
    0.3x/1/3=1/9
    （x-106.300）*10+（112.300-113.418）*10-1-1=-20
    （x-106.300）*10+（112.271-113.418）*10-1-1=-20
    （x-106.300）*10-（112.271-113.418）*10-1-1=-20
    X/230+X/4.7-0.988892/230-3.3/4.7=0
    X/4.7+X/20+X/234.7-1/4-3.3/234.7=0
    54+35+47-16-13-x+9=80
    7x-3x7＝6
    （X-5.861）*200-0.1=5
    (23-x)(400+20x)=8400
    (23-x)(400+20x)=4800
    (58-35-x)(400+20x）=8400
    (23-x)(400-20x)=8400
    2t²-75t+475＝0
    x/(94190+x)=12/100
    x（62－2x）=480
    8=x*(x^2+1)^(1/2)
    1/[(x-1)^2]-1-1/x=0
    1*x=1*(x-1)^2-1

Home page << page491 page492 page493 page494 page495 ... ... page497 page498 page499 page500 page501 >> Last page 31237 pages in total