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12/540
540/12
-20*(1/4)
128/(x^2)
2/64
| x*0.9=20000 | | 0.25x+4.75=7 | | 36=r/5.5 | | 4.9t^2+2t-50=0 | | n^3-n=7n^2-7 | | 3X^2=-2+12X | | 3cos(2x)+4=5 | | 4.9t^2-2t+50=0 | | m^2+4m-23=0 | | 9(p+2)=p+20 | | 4.75+0.25x=7 | | 20-n=14 | | 2(x+15)+15=87 | | 8n-7=6(n-1) | | (1/4)*(-20) | | 3(c+4)=2c+17 | | ln(5x+9)=6 | | (6x^2+4x+2)+(8x^2+7x)= | | 6x-1/x=0 | | a^2-15+56=o | | -5(4+3y)=-25 | | 5+11x=1+x | | -4a+5-7a=21 | | 4x-6=-2r-18 | | 3x+2(x-16)=8 | | X-2=1/3x | | 33=8(3d-9) | | 8d-12-6d=2 | | 20=4s-6s | | -5h-9-7=-19 | | 9x-36=12x+9 | | 2.5+15+0.5(x-4)=1.2x+2(.9x-6) |