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m in (-oo:+oo)
(1/2)*m-(5/8) = 3/8 // - 3/8
(1/2)*m-(5/8)-(3/8) = 0
(1/2)*m-5/8-3/8 = 0
1/2*m-1 = 0 // + 1
1/2*m = 1 // : 1/2
m = 1/1/2
m = 2
m = 2
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