-71810+60000+X-(20000-6800+X)x10%/4-6300=3000
    -41800+30000-4500+X-X10%/4=3000
    -16300*X-X*2.5%=3000
    x^2-9x+12.4=0
    x*（0.025+x）/（0.050-x）＝0.0000175
    2x^2+x-2=0
    (15-x)*(20+4x)=396
    x*(30-3x)=48
    x(x+40)=9600
    (15-2x)*(10-x)=88
    x*x-9.3x+14.6=0
    x^3+20.93x^2+0.4x-0.14=0
    2/x+1/（x+9）=1/（x+5）
    xln（x/0.034）=0.0659
    xln（x/0.034）=0.0598
    (10x+3)*6528=(30+x)*8256
    (x-887)/4.0979=x^(2/3)
    (x-887)/4.098=x^(2/3)
    x-887=4.098*x^(2/3)
    x-7236=3*x^(2/3)

Home page << page31 page32 page33 page34 page35 ... ... page37 page38 page39 page40 page41 >> Last page 31235 pages in total