Answer:
10x-13y+3
Explanation:
First, distribute:
(9)(x)+(9)(-y)+3+-4y+x
Then combine like terms
9x+-9y+3+-4y+x
(9x+x)+(-9y+-4y)+3
first distribute the 9 to the (x-y) and you get
9x-9y+3-4y+x then combine like terms so
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