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2;3;9;20;0;2
(-1/9)*x = 13
4;20;15;20;7;4
e^x
x^5+x^4+x^3+x^2+1;x^2+x+1
| 3(6x-5)=39 | | 5x+20=7x+6 | | -7c+3b-2a=-12 | | -1/9x=13 | | 8z+6=1 | | -2a+3b-7c=-12forc | | x+23=-22 | | -2a+3b-7c=-12 | | 7x+9=-x+89 | | y^2+3+18=0 | | 2m^2-19m+44=0 | | 4x-(-x+7)=-27 | | 4(3+7y)+6(2-y)=68 | | 8y-9z=-17 | | 1.5=0.25q+0.75 | | a+(-7)=-17 | | x*6/x*3 | | -6x+2(2x+4)=-6 | | 5n-3+3n=5 | | f(2)=10/x3 | | -k-12=5-6(k+7) | | 434x^2+43x+23=43 | | -2x-4(4x+1)=446 | | 21.8x=-124.266 | | 2x-14+4x-2=5x+4 | | -4(5x-5)=220 | | -10=-3r+r | | -2z-5z=z-8+2z | | (2x-1)(3x+1)-2=0 | | 3.9x-8.9=18.4 | | -4x-1/2=31/2 | | 3/2x-4/5x=6/20 |