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1/2-4 = -2
-7/2 = -2
L <> R
| 6a(3x-2y)=5ax-2 | | -0.5y*3*x=20 | | 4[x-1]=12 | | 4x+(4x-20)=180 | | 10x+10=6x-14 | | 11-4y=41+y | | 11-4y=41-y | | 2(y-5)-(2y+4)=-8y | | x*5x=9 | | 11+4y=41+y | | 5x-1x=5-4 | | 11+4y=41-y | | xn+yn+zn=wn | | x+8y-4=44 | | (48^6)/(6V2) | | x+8x-4=105 | | 2-6x=8x-12 | | 10x+1=3x+43 | | X+4x-8=75 | | 13x+1=6x+8 | | 12x=4x-2 | | 28=7x+49 | | -3x+21=x-11 | | -2x-2=-3x+6 | | -6x-12=-4x-4 | | x*2-4x-80=0 | | -x+10=14 | | x+0.15=60 | | 4x/4x=-16/4x | | 2x+22=-4x+46 | | (2x+y-2)dx-(4x+2y+1)dy=0 | | -2x+3=x+12 |