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x in (-oo:+oo)
(5/2)*x+(1/4)*x = (11/4)*x // - (11/4)*x
(5/2)*x+(1/4)*x-((11/4)*x) = 0
(5/2)*x+(1/4)*x+(-11/4)*x = 0
0 = 0
x naleu017Cy do R
x in (-oo:+oo)
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