When we add 5a2b+6ab+7bc+54 to 14ab+8ac+16, we will get:
b + 20ab + 7bc + 8ac + 70
5a2b+6ab+7bc+54
14ab +16+8ac ––––––––––––––––––––––––––––––––––––
5a2b+20ab+7bc+70+8ac
This cannot be simplified further as 5a2b,20ab,7bc,70 and 8ac are unlike terms.