Respuesta :
4m+9+5m-12=42
Combine the like terms(Add 5m to 4m while subtracting 12 from 9).
9m - 3= 42
Add 3 to both sides
9m=45
Divide 9 on both sides so that the only thing remaining on the left side is the variable m.
Final Answer: m= 5
Combine the like terms(Add 5m to 4m while subtracting 12 from 9).
9m - 3= 42
Add 3 to both sides
9m=45
Divide 9 on both sides so that the only thing remaining on the left side is the variable m.
Final Answer: m= 5