m/6 + m/9 = 1/15 + m/3 - 1/6
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m/6 + m/9 = 1/15 + m-1/2/3=
m/6 + m/9 -m= 1/15 -1/2:3=
(3m+2m-18m)/18=1/15-1/6
-13m/18=(2-5)/30
30.(-13)m=18.(-3)
-390m=-54
m=54/390
m=27/195
m=9/65
m/6 + m/9 -m= 1/15 -1/2:3=
(3m+2m-18m)/18=1/15-1/6
-13m/18=(2-5)/30
30.(-13)m=18.(-3)
-390m=-54
m=54/390
m=27/195
m=9/65
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