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8100/28000 = 0
81/280 = 0
L <> R
| 12x-11/30 | | 2y-12=6y | | log(7)(x+6)=2 | | 2+7x+10= | | 21b+7z=147 | | -3y=-x-7 | | 4x+2x+18=50 | | C+-2=-6 | | 40x+10y=673 | | 3a+3=5a+5 | | -6x^3-5x^2-8x+9+(17x^3-2x^2-4x-13)= | | a=b/cd | | -3/4-8 | | r=l/pt | | P-2q-p^2+4q^2= | | 4x-7/3=-9 | | 8/(6-7i) | | 8/k=5/8 | | 8/9=12/n | | C+-2=6 | | C-(6)=7 | | C-(5)=1 | | 12+xy-24=0 | | (-4+x)(4x-4)= | | -6y-5/2=3/2y-7/5 | | 7y=2x+31 | | 0*a=0 | | -(ab)=(-a)b | | (-a)b=a(-b) | | 4a-4=24+2a | | x^3-4x^2-28x-32/x-8= | | 4(x-2)-3(x-4)-5= |