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x in (-oo:+oo)
x+11 = (1/4)*m-(2*m) // - (1/4)*m-(2*m)
2*m-((1/4)*m)+x+11 = 0
(-1/4)*m+2*m+x+11 = 0
7/4*m+x+11 = 0 // - 7/4*m+11
x = -(7/4*m+11)
x = -(7/4*m+11)
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