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ctg((1/2)*x)
(sin(x^4-1))^5
6;7;5;6;2;0
x^2-1 > 0;x
x
4/x <= x;x
x
| -394+-p=-50 | | -31-7y+16=-28+57+15y | | -3d-2d=50 | | -5-(x+1)+3x=6-(4x-3) | | 9n+4n-2n-11n+n=15 | | 5-(x+1)+3x=6-(4x-3) | | -22=2x-8 | | 3m-3m+4m-3m=11 | | 8p-99=7p-82 | | 3(y-2)=30 | | s/10=-24 | | 2x^2+2y^2-28x+12y+144=0 | | 64=5x+14 | | 7t=833 | | 15p+p-12p=20 | | 8(x+3)=6x+4+7x | | 5(2y+3)=3(4-p) | | -4v=-132 | | 3x+18-7=4 | | 24=3x+7x-6 | | b-27=44 | | 90=4u+10 | | -13=w-2 | | 13r-7r+r-2r=19 | | 7(r-2)=r-26+4r | | 3(5x+3)-3=15x+6 | | g-80=14 | | k-4=69 | | k-11+6k=2(k+2) | | k-k+2k=20 | | 14y+2y+y-16y=8 | | 34+4y-1=14y-9-4y |