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-15*(-20/5) = 0
-15*(-4) = 0
4*15 = 0
60 = 0
L <> R
| W-9forw=-13 | | 0.50x+1050=25.5 | | -2/3x-7=13 | | 64c^3-125=0 | | 3/0.72=12/b | | 5=-12pm+7+4p-12 | | 3x+5/x=16 | | x^2-4xy-21y^2=0 | | 2+2w=* | | X^15-y^18=0 | | -(x+3)=18 | | 6/n=3/0.51 | | 1/8-3/4 | | 1/4x-1/7x+1/28x=4 | | 0.05x+0.35(30)=25.5 | | 15x+100=1000 | | 2+w=* | | 42.2=173+4h | | 8/11(t-10)=64 | | 12x^2+4d-1=0 | | 5x-11x=24 | | 8(w)6=208 | | 8p+5=7p+14 | | K=uc^2 | | y=-0.50(50)+124 | | y=-0.50(40)+124 | | y=-0.50(30)+124 | | 4x^4-2x^2-4-2=0 | | 21-6k=-5k | | 2r^2+24r+11=0 | | 3x-2.1=8.4 | | y=-0.50(20)+124 |