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| 28x+y=30 | | 63x+10y=309 | | Y=100+0.8Y+100 | | 4-5x=5x-1 | | x-a+7=4sqrt(x-1) | | 9=18200x(1-150/(150^2+x^2)^0.5 | | 3x+3y=300 | | 88=9 | | 12=4+3/x | | y/11=-9 | | 20logx=-3 | | -10x=235 | | x^3-9x^2-9x-10=0 | | lgX=134 | | 7/5+3x=21 | | x=60*0+1+60 | | 8/2x+4=1/5 | | 8/2x+4_=1/5 | | x^4-4x+10=0 | | 3x+1/11=x-3/7 | | (x+4)-(y-3)=16 | | E=(3-x)(3+2x)+7x-21 | | x-[2x-5x-1/3]=x-1/3=1/2] | | x-[2x-5x-1/3]=x-1/3+1/2] | | 4sin(x-Π/6)cos(x-Π/6) | | 2x/5-6+-3 | | 1/9t=4 | | 16x-2*1/(x*x) | | 16x-2/x^2=0 | | 16x-2/x^2 | | x^2-4y^2=271+3x+24y | | tgx/4+1=0 |