Respuesta :
Your answer is 9! Please ask questions if you need me to go into further detail. Have a good day! :)
Answer
9
Explanation
y+5-y+4
Since two opposites add up to zero, remove them from the expression
5+4
Add the numbers
9
9
Explanation
y+5-y+4
Since two opposites add up to zero, remove them from the expression
5+4
Add the numbers
9