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(2*x)/(x^2)
21/100
20.100;7.985
(2*5*x)/(x^2)
(2*5*x)/(x^2)+4
| 2x-10+4x+2=63 | | 2x+12=10x-20 | | 5+44=2+2 | | -6.25x+626.5=250 | | -6.25+626.5=250 | | 9x-33=2x+16 | | (7r6u-10)/21r-8u8) | | 4(2n+5)+4=3(5n-6) | | -6x-8x+12x-126=130-2x+8x-25 | | 9[7-(-9x-8)]=567x+567 | | x/2=12.5 | | 28=-2x^2+x | | X^2=16-y^2 | | Cos16=x/14.5 | | 150(x+0.75)=825 | | -5x+6y-(-7x)-9y= | | 2/3x=8/12 | | -8x+y=-8 | | 2m=3x-6m+9z | | 1/2=6/1 | | 9-(-30)= | | X/14=40/35 | | -12+7x=51 | | 19=3t-2 | | y(k+1)=Y(k)+5 | | (x+2)(x-5)(1-x)=0 | | 27-4p=19-3p | | 15-4m=7 | | 4x-48=x+90 | | 13/5*5/2 | | -27=3y-6 | | 150=3xj |