Question

0.1m+8-12n m=30 n= 1/4

Answer 1

I'm not sure what to do here but by plugging in the values and solving you would get 8. 

You can get this after you plug in each value and multiply, you can either add 3 to 8 and get 12, and then subtract 3 to get 8. 

Or you can also subtract 3 from 8 to get 5 and add three to get 8.

Hope this helps!