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m in (-oo:+oo)
-(2*m)-(3*m)-10 = -45 // + 45
45-(2*m)-(3*m)-10 = 0
45-2*m-3*m-10 = 0
35-5*m = 0 // - 35
-5*m = -35 // : -5
m = -35/(-5)
m = 7
m = 7
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