0.85*45X+0.15*20X=14000*0.53
    (45678 + 84567 + 78456 + 67845 + 56784)÷6
    (62345 + 23456 + 34562 + 45623 + 56234)÷5
    12960-4.4x=1.3034x
    （12960-4.4x）除以34.3x=0.038
    （12960-4.4x）除以34.3x乘以100%=3.8%
    (x+1)^3-6(x+1)-4=0
    x^3-6x-4=0
    (4410000+480^2)/（2*480）
    (4410000+480^2)/2*480
    （2+x）/2=5
    （x-2019)(x-2020) = 2021*2022
    x*3438/9=357.16
    3+2
    81=0.245x+（0.9×5÷76140）x^(3)
    (40-x)^2*(0.435*0.435+x^2)=(80^2+(40-x)^2)*1.5^2*x^2
    (82.4-x)^2*(0.435*0.435+x^2)=(177.7^2+(82.4-x)^2)*1.55^2*x^2
    (82.4-x)^2*(0.635*0.635+x^2)=(177.7^2+(82.4-x)^2)*1.55^2*x^2
    (82.4-x)^2=1
    28*x+3=9

Home page << page3275 page3276 page3277 page3278 page3279 ... ... page3290 page3291 page3292 page3293 page3294 >> Last page 3344 pages in total