For this case we must look for the value of the variable "m" of the following given equation:
[tex]5m + 4m = 72[/tex]
Adding similar terms we have:
[tex]9m = 72[/tex]
Dividing between 9 on both sides of the equation:
[tex]\frac {9m} {9} = \frac {72} {9}\\m = 8[/tex]
Thus, the value of variable m is 8
Answer:
[tex]m = 8[/tex]
