3m + m = 31 - m. Nilai m adalah

3m + m = 31 - m
4 m = 31 - m
4 m + m = 31
5 m = 31
m = 31/5
m = 6 1/5

3m + m = 31 -m
3m + m + m = 31
5m =31
m =
[tex] \frac{31}{5} [/tex]
m= 6,2

[tex][/tex]