Respuesta :
Answer:
-4x + 9y
Step-by-step explanation:
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Answer:
-4x+9y
Step-by-step explanation:
(-x - y) – (3x – 10y)
Distribute the minus sign
-x - y – 3x + 10y
Combine like terms
-x -3x -y +10y
-4x +9y