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(2*x-4)*(x-2)-x^2+4*x-8 = 0
(x^2-(4*x)+8)/(x-2)
2*x-5 = 3-((2/3)*x)
a+b-26+12;c+d;3*a+3*b+4.5*d-(3*12)+6*26;9*26-4.5*c-(6*12)
Y = 3/8-5
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