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x in (-oo:+oo)
5.3*q = w/(-2.3) // - w/(-2.3)
5.3*q-(w/(-2.3)) = 0
5.3*q+0.43478261*w = 0
5.3*q+0.43478261*w = 0
x naleu017Cy do R
x in (-oo:+oo)
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