Basic Algebra :O

This is an example of basic algebra 3a+2a= 5a because well 3+2=5 and ye know just add a because that's letter in the equation. I used the same method to work out the rest of these.


Another example:
6x-3x= 6x because 6-3=3 and then add x






The answer to this equation is 9m +7 because,  6m+3m=9m and then 5+2= 7 so it 9m +7