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x-(y*z);y-(x*z);z-(x*y)
(1-x)^2
2*(1-x)^2
2*(1-x)^2+x^2-x-(2*x)+1
13/30
| y=2*0-14 | | -21a+7=91 | | 55000+(2500y)=62000+(2000y) | | 5(2x+7)-(10x-5)=30 | | -21a+7=9q | | 4x+9-2s+8= | | 24+85=45x | | 3x^2+5x-418=0 | | 7x-(11x-2)= | | 1000+(1200m)=1500+(1175m) | | 5(n-6)=-15 | | X+-9.99=2.1 | | 4(3x-6)-5=4(x-5)+7 | | -29x+13x-3=13 | | 2n-n*6=n*2 | | 5*6x=60+22x | | 2t+50=3t-87 | | 5r-9r=12 | | 4(3x-6)=4(x-5)+7 | | 14x+4x=18 | | 18-9r=63 | | 18-9r=3 | | 64=7x+x^2 | | 25.5+7z=-2(6.5z-8.5) | | 12.50+(0.40e)=14.75+(0.25e) | | 7x-7=-x-47 | | y=-lx+4l+2 | | y-28=3(x+5) | | 5*6x=90+28x | | 4a-2+5=23 | | x^2-20x-1500=0 | | y-28=11(x+20) |