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x^2-(202*x)+10200 = 0;x
x
(6-(2*x))^2-a^2+x^2;153-(a+y)^2;(3-x)^2+(2*x+6)^2-y^2
x^2-a^2-(2*x)+6;(6-(2*x))^2-a^2+x^2
x^2-(8*x)+7 = 0;x
x
1595.52/((x+1)^5) = 0;x
x
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