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1;7;8;2
0.391;1.7
196.8;16
0.1;12.70
(x^2-(4*x))/(x^2+2*x)
| 3+-6t+8-7t=-2 | | 2800+-800x=0 | | x+8-2=6 | | -5f=-35 | | 0=2x^3-40x^2+283x-728 | | (5+x)(4000-400x)-2(4000-400x)=0 | | 5-4x=8x+3 | | x^2-2x-44=0factor | | -1x+7.5=0 | | 0.5h+2=2 | | 77=7b | | 2x-6x=-10 | | 7c+d+15c+5d= | | 7(4w+9)/3=-6 | | 2sin^2x-2cos-1=0 | | 5x-6=-9x-5 | | 3(a+2)+18=7a-2(5a+3) | | -11=v+2 | | -5x+6=8x+4 | | 8s+85=6s+95 | | 2(3x-2)=4x-3(x-2) | | 2x-8=-7x-3 | | 3(2c+1)+20=9c-2(3c-1) | | c=1/2jv | | 9z-3(2z-4)=15 | | 6y+3+106x-1=180 | | .71=X/.016 | | 5x+7-2x=-x+47 | | 5x^2+9y^2-80x+54y+221=0 | | 12+5(7-6x)=5-16x | | 1/3x-2=12 | | 40=10+5x |