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1;5;3;5;4;2
5;9;4;9;1;2
1;9;5;9;3;1
3;11;6;11;9;7
2358.35;0.908
| 13x-189=5x-13 | | -2(-5X+9)=10 | | 2x^2-8=-15x | | 2x^2-8=-15 | | 5x+2(X+1)=3x+10 | | -49(-9A+9)=36A | | D^2+1.5D-30=0 | | 2(X-3)+2=3(X-2)-9 | | 2(x^2)+x-20=0 | | sin(2x)=-(sqrt(2/))/2 | | x^2-8x+y^2+2y+16=12 | | 7+4u=70-3 | | 1/2(4.5)-8 | | 5(-3-x)-(5x-1)= | | -0.2(50)+0.8x=0.3(50+x) | | 30x+640=25x+450 | | 10sinx=-12 | | 5r-6r=3(r+5)-16 | | N+2.5=7.9 | | 100x^2+113.98x-39893=0 | | .2x=2640 | | 4(3x-2)-12(x+5)= | | 4y^2-15y=0 | | -6(-x-7)+2x+51=157 | | 5x-8xy+(-12x)= | | =3(2x+5y)-2(3x-y) | | x^2-x-12/x-2=0 | | 3(2x+5y)-2(3x-y)= | | 4x-20=14x-35 | | 4x^2+53x-42=0 | | 32×3/8 | | tan(4x+5)=3 |