Answer:
21a
Explanation:
because ,
4a+4a+3a =11a
and 7a+3a=10a
and they are equal so what you need is that
just to add them and for maths (and) means addition ..... so therefore the answer is 21a
yes they are equal.. all you need is just to add all the number to get your answer!
5.2m questions
6.8m answers