what is another way to write (7z+5+6)
(7z+11) because you add like terms so since 5 and 6 have no variable you would add them to get 11. You cant add 7z to anything because no other number has a variable
add 5 and 65+6=11you can't add the 7z and the 11 because that is unknown+knownresult is 7z+11