Simplify: $7 x - 9 y + 3 - 3 x - 5 y + 8$

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Solution

Let's combine the $x$ and $y$ terms together as :
$7 x - 3 x - 9 y - 5 y + 8 + 3$
Now by simply adding the terms comprising of $x$ and $y$
we get the solution : $4 x - 14 y + 11$
Thus the answer is: $4 x - 14 y + 11$

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