Question

PLZZZZZZZZZ HELP MEEEEEEEEEE!!!!!!!!!

marina said that -x - 8 + 5y +9x can be simplified to 13y - 8
what was her error

Answer 1

Explanation:

-x-8+5y+9x

=8x+5y-8

maybe instead of x is y

that's the only way it will be 13y