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-8/9 = 5/9
18*x+21*y-31;27*x-(3*y)-31
2*x^2-1*x^3+4*x-3 = 0;x
x
4/(x^2)-(2*x)
10-(5/6)
| -19(y+752)=57 | | 1+3x+x^3=0 | | 10•5/6 | | 1/10x9 | | p-32+14=-114 | | -6m-7=10-10m | | 2n^2=-16+12n | | 8+15x=0 | | (12n-n)+(5n)= | | x+(-8)=5 | | -19(y+752)=52 | | (3/5)*=(27/125 | | 3x+80*2x=180 | | Senx+cos^2x=1 | | 3(z-4)-5=4(z-9) | | -28+x=x | | 10-5/6 | | -9x-5+6x=8x-7+3x | | -11/12x=7 | | i+iz+z=5 | | x-355=261 | | 4-2/7x=18 | | 126+x=214 | | 1x+3y=50 | | 17.5x-10=130 | | N=0.07x+x | | 3y=-5x+36 | | x(x+20)=702 | | 9p-8+8= | | 3(2x-9)-3=3(x-4) | | 4x+22=-6x+52 | | -[5x-(2x+9)]=-4-[4(2x-4)-3x] |