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m in (-oo:+oo)
4 = m/8+3/4 // - m/8+3/4
4-(m/8)-(3/4) = 0
4-(m/8)-3/4 = 0
13/4-1/8*m = 0 // - 13/4
-1/8*m = -13/4 // : -1/8
m = -13/4/(-1/8)
m = 26
m = 26
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