Step-by-step explanation:
2m+m=10+8
3m=18 /3
M=6
[tex]2m - 8 = - m + 10 \\ 2m + m = 10 + 8 \\ 3m = 18 \\ \frac{3m}{3} = \frac{18}{3} \\ m = 6[/tex]
