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30.5/40 = 0
0.7625 = 0
L <> R
| X+x+x=x-30 | | sin45=250/x | | 4-m/2=10x= | | -13n+4=-9-8 | | (8x-28)=9-16 | | (8x)-28=9-16 | | 10+9x=-22-x | | u/7=-43 | | -25=-u/5 | | -7x-7=-3x-15 | | 5=x/2.2 | | 6x+4=24-5x+5 | | f(x)=4x/7x-49 | | 2•170/20 | | H=2•170/20 | | 2y-3=19+2y | | 72+72+x=180 | | 8y+2y=9y+1 | | 54+54+x=180 | | 2xy=-15x+8 | | 28x^4-8x^3/4x^2 | | 15.8/X=4.5/1 | | -7=0.25(y+2) | | 8x^2-16x-39=5 | | 4/3n=3/1/5 | | Log(logx)=100 | | -16t^2-30t-1=0 | | 6x=6-5y | | 6x=6-7y | | 11=r/4 | | 4.9t^2-13t-24=0 | | 4X+X^2=25 |