1. 9(12m+24)+5(19-15m)=108m+216+95-75m=33m+311
2. 9(12m+24)+5(19-15m)=410
108m+216+95-75m=410
33m+311=410
33m=410-311
33m=99
m=3
1. 9(12m+24)+5(19-15m)=108m+216+95-75m=33m+311
2. 9(12m+24)+5(19-15m)=410
108m+216+95-75m=410
33m+311=410
33m=410-311
33m=99
m=3