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(-121/41)/2
2*x
25/x-1
3.8 = (144-D)/21.5
5*sin(2*x)-(x/7)^2
| 4(-3w+9)=-6(2w-6) | | z*3=4*x+7 | | [3-4x]-1=8 | | 3850=8*2-450 | | 2x=8*2-450 | | 2a-19-3a=6 | | x^3+4x^2-39x+54=2 | | x^3+4x^2-39x+54=0 | | f(-2)=3(-2)-6 | | 5x-9y=33 | | 1.4x+4.7x+5.02=111.2 | | 4(-9x-9)=-36-36x | | f(2)=6(2)+4 | | 5.3x-17.2=4 | | -24-4x=12x+8 | | 7.8x-17.4=37.2 | | 10n-6=2+10n | | 5/6-1/3=2x-5 | | 3y-25=50 | | 3u-16=38 | | C=x-3/7x | | 6=n-5n-6 | | x-16.67=180 | | 2x=25+5x-70 | | 5x-4/2=3x-9 | | 18/16=x/14 | | R^3=-64 | | 3×/4-×/6=5 | | V=22/7x4x7 | | -3x+11y=-27 | | -30=-8x+(-11)-6x+16 | | 2x=12+5x |