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-840/4 = 0
-210 = 0
L <> R
| .8x+.5x=15 | | 10c^2+33c=-20 | | 5x+3=x-1 | | y-6=-3 | | w^3-2w^2-63w=0 | | 5/6x9/10 | | 6y^2+12y=18x+48 | | 4x+8=-56 | | 49x-5y=70 | | 4x^2+23x+3=0 | | 6b^2-29b=5 | | (3b^2+3b-7)/(b-2) | | 789x=9090000x-192885 | | x=1+1x-2334 | | -36t^2+39t=-42 | | 888888x-4449-223-56x=2344x | | 33=8+x*x | | -18w^2+39w=-84 | | 1.2(6.25+-1.25y)-3.5y=2.5 | | 9x=3(11) | | 9y=3y+24 | | .4x+.5y=2.5 | | 1/5t+5/6=4/6-t | | 1/5(5x-6)=8 | | (5x-6)=8 | | 6r+r=12 | | 3x+4(7.5+2.5x)=-9 | | (2/3m-3/5m)=4 | | 5-4/5x | | 8-10=x+11 | | 1/2t+1/3t=10 | | 32-10=9x+2x |