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m in (-oo:+oo)
3/2-((5/8)*m) > (1/4)*m-(15/4) // - (1/4)*m-(15/4)
3/2-((5/8)*m)-((1/4)*m)+15/4 > 0
(-5/8)*m+(-1/4)*m+3/2+15/4 > 0
21/4-7/8*m > 0 // - 21/4
-7/8*m > -21/4 // : -7/8
m < -21/4/(-7/8)
m < 6
m in (-oo:6)
(-oo:6)
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