Answer :
5x + 5x - x + 8y - 4y =
(5x + 5x - x) + (8y - 4y) =
(9x) + (4y) =
9x + 4y
[tex]{\boxed{\sf\ Answer:\ 9x+4y}[/tex]
(5x + 5x - x) + (8y - 4y) =
(9x) + (4y) =
9x + 4y
[tex]{\boxed{\sf\ Answer:\ 9x+4y}[/tex]