12.06× c=（3.3+c）×7.92
    5t*t-12t＝0
    4t(6-t)=72
    10000(0.018+0.042)=12500*(0.018+x)
    10000(0.018+0.042)=1250*(0.018+x)
    10000(1.8+4.2)=1250*(1.8+x)
    x^(476-0.5*x)=4.79
    (10-x)(30＋5x)＝315
    (10-x)(30＋5x)
    x²-870x+105072
    x²-920x+66667＝0
    x²-920x+105072＝0
    x²-675x+77128＝0
    810-0.81x*x=110x
    58.8d^5-0.332d-0.10956=0
    15/131+X/126-(95-X)/1000=0.404
    x²+65.22x-160=0
    （2X-1）²=4X+9
    25x^2-30x-27＝0
    （1+2y）（1+2y）-3（1+2y）+2=0

Home page << page60 page61 page62 page63 page64 ... ... page66 page67 page68 page69 page70 >> Last page 31235 pages in total