I need a bit of assisting of how to do this

Answer:
[tex] \frac{1}{12} m + 17[/tex]
Step-by-step explanation:
We want to combine alike terms.
so
1/3m - 1/4m
&
10+7
To add or subtract fractions the decimals need to be the same. We'll multiply 1/3 by 4/4 and 1/4 by 3/3 to get both denominators to 12
1/3 = 4/12
1/4 = 3/12
now we subtract
4/12 - 3/12
1/12m
now do 10+7
17
our simplified equation is
[tex] \frac{1}{12}m + 17[/tex]
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!