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m in (-oo:+oo)
2*(1-(6*m)) = 74 // - 74
2*(1-(6*m))-74 = 0
2*(1-6*m)-74 = 0
2*(1-6*m)-74 = 0
-12*m-72 = 0
-12*m-72 = 0
-12*m-72 = 0 // + 72
-12*m = 72 // : -12
m = 72/(-12)
m = -6
m = -6
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