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(3*x^3-(9*x))/(7*x-21) = 0
1680;320
700;2.40
(3*x+4)/(x-1) >= 2
(1/3)*x-(1/3) = (2/7)*x-(1/7)
| (3x^3-9x)/(7x-21) | | 9-3(6-4x)+2x=3x-3(-4-x)-1 | | .5x+5.5=-1.7x-5.5 | | -8x-9y=-2 | | Log(8)(x+5)=2 | | (X+T)*.05=T | | -9x+1=-5x-7 | | 196+x^2=9x^2 | | v=4/3π7^3 | | -3x-16=-x-4 | | X+3=(3x-91) | | 1/3x-1/3=2/7x-1/7 | | Cos40°=15/x | | -4x+17=-16x-18 | | 12x+19=4(3x+5) | | .2x=91 | | 3x+6=-2-3+4x | | (3/8)×(-5/-7)×2 | | 2w+(2w+5)=70 | | x-5(3-2x)=4-(2x-7) | | f(t)=2(0.4) | | 0.5(7d+4)=7-15d | | (11x+2)=8(x+20) | | -24=-(4/9)x | | 144/200 | | 8/4=-20 | | 8/4=-29 | | p/3-3=144 | | 10x-20=x+15 | | Y-3=3/4(x-3) | | -18+2x=-10 | | 20a-16a=20 |