Answer:
-10y
Explanation:
=5x-5y-5y-5x
=5x-5x-5y-5y
=-10y
5(x-y)-5(y+x)
Let's use the Distributive Property to help us solve.
5x-5y-5y-5x
Now, all we have to do is combine like terms.
=>5x-5x-5y-5y
=>-10y
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