Hey there! "
Firstly we have to combine your like terms
Like: 
Out of all of those terms we get

Out of those terms we just did, (
) , we have to move on to your next step which is to
by
on each of your sides
Like: 
Cancel:
because it give you the result of 
Keep:
because it is helping you solve for your actual answer!

Now we have to
by
on each of your sides
Like: 
Cancel:
because it gives you the result of a 
Keep:
because it gives you your result
Answer; 
Good luck on your assignment and enjoy your day!
~