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2;5;13;20;2;(-1)
1;2;1;4;0;0
3;4;1;2;0;0
1;2;1;4;0;0
21059;7
| 4x*2+6x+8=0 | | 2(4s+8)=24 | | 106=-4x-4x+10 | | 5x-2+3x+6= | | 8(2l+1)=184 | | Cos4x=3/5 | | -6(17/18) | | 3n^2=2n-6 | | 3y=x-24 | | -37=-5x+x+7 | | x=1/2(360-120)=0 | | 2x=84+32 | | 3x*2=24 | | 8(15-x)=120-40 | | 3n^2+3n=60 | | 8=-3x+7x+8 | | 4y-y-8=10 | | 5x+x+9=45 | | -27=-7x+2x+8 | | a=2bd-2dc-2cb | | n-7=9+3n | | 48=4(5+a) | | -33=-3n-3(2n+2) | | 3.14*x+8.9=0 | | -4(2k-3)=44 | | 4=12-a | | sqrt(t^4+2t^2+1)=0 | | -4k(2k-3)=44 | | 4*x+8=0 | | -3(6n+4)=-156 | | 88646.4=(48+2x)(2x) | | 5(n-8)+3(1-n)=-23 |