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(2*sin(x))/(x^2+1)
2107.53;65
(8-x)/x = 0.63
(x^3+2*x)/(3*x^2-5)
3^x+4*5^x
| 2q+1=-3 | | p^3+7p^2-3p-21=0 | | 9(2x+7)=8-(x+2) | | -2.5p-20=9p+35.7 | | -(4x+4)=28 | | 8-6p=-4 | | 14ab/21b | | 5(3x-2)=20+5x | | 4(3p+7q)-5p= | | 11/5=2/5y | | 2/5(1/2y+5)-4/5=1/2y-1+1/10y | | -12-2x-12x=-138 | | 3x*2+8x-11=13-6x | | 2x+4=8x-176 | | (-c+4c-7)=0 | | 9c=6+3c | | 3w+9x-11y+7w+5x+2y= | | 4c(-c+4c-7)=0 | | 2c(4c-3)= | | 3x(3x)+8x-11=13-6x | | 6X+18=x+2 | | -10(s+3)=-16 | | -8x+50=-x-90 | | X^2-3x=40+20 | | n+g=4n-6 | | 4w-4x-y+4w+18x-5y= | | 7x-1/3x=-2/3 | | 2c*4c= | | 4y-10+7y=89 | | -4c^3+16c^2-28c=0 | | m(n-p)= | | 2(2x-13)=3x-7 |