PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY

Answer:
1+5n+9y
Step-by-step explanation:
This is just combining like terms, so numbers with the same coefficient will be added together because this is combining like terms, and numbers w/ out a coefficient will be placed together because we are combining like terms