Last one please help me solve this

Answer:
-2xy+5y-9x
Step-by-step explanation:
you cant simplify further because they don't have the same variables
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Answer:
-2xy + 5y - 9x
Step-by-step explanation:
Let's solve the problem,
→ 4xy - 6xy + 5y - 9x
→ (4xy - 6xy) + 5y - 9x
→ -2xy + 5y - 9x
Thus, it is -2xy + 5y - 9x.