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1-((x*((x^2+2*x+1)/3))/((x^2-(2*x)-3)/x)) = 0;x
x
(x^2+2*x+1)*(x^2-(2*x)+1) = 0;x
x
52.76*x+3.89*y+0.0258;3.89*x+2.19*y+0.00884
sin(x)/5
1.4 = (x-130000)/130000;x
x
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