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| -0.39x^2+12x-40=0 | | 7*6+2^2-3^2= | | 5/6=n/48 | | 4x^2-y^2-24x+4y+36=0 | | -4(1-4n)=2n-4 | | 8r-2=32+2r | | 3n-15=-1+n | | y/3+5=-8/16 | | -3x-9x=84 | | -10x-19=-199 | | -3n-3(1+4n)=57 | | -56=8+8x | | 2+5r+r=20 | | 2/9r=4 | | y=-4/3(x+7)-9 | | -4/3y=-8 | | -3/10n=-12 | | 22p=176 | | 7y=5x+1 | | y-43=19 | | x+-5x=12 | | 0.6*1.8/0.5*12=x | | {x=3y=103x=7y=24 | | 6x+12x=x | | 6x+12x= | | 5x+1=-30 | | 6x+12x=Ax | | 0.29x50 | | 1/2+2/9= | | x^4y^7/x^5y | | -6x+3=-69 | | -3x+1=34 |