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2000;1457
39.78;18.657
3;7;5;7;0;0
2828;14
6;7;3;7;3;1
| 6/8×x/12 | | x+x+y+40=180 | | -6x-117=15 | | 6/8×12/x | | -x-x=-50 | | X+20=6x+40 | | 2x-3=5b-2 | | 6+96+5x= | | 2h=-32 | | x-8=3a+1 | | 4y-30=30 | | 3(2x-2)=6x+5 | | x+2=a | | f^2=49 | | f^2=343 | | 6p-4=-6-2p | | 6u+1=37 | | 5/6x-3/4=1/4 | | 8p-8/p/9p-9/49^2 | | 3y+9y=102 | | -39=6x+9 | | 2x+1=-4x | | 1/4x0 | | 7c=6c+7 | | 4t+5t=-27t | | -5x+7(-8)=-6 | | 3x-7y+2x-y= | | 13x+1=37+7x | | -(2v+3)-8v=-3(1-3v) | | P(x)=x^3-4x^2-11x+30 | | 6x-6x+4=4 | | 8x=7(16) |