Answer:
-3y + 1
Explanation:
Don't let the parenthesis confuse you, you olny distribute if there are no signs separating them.
(10y + 1) - 13y (Goodbye parenthesis)
10y + 1 - 13y (Given)
-3y + 1 (combine like terms)
Ace Carlos
(10y + 1) - 13y
(add paretheses first, if possible)
(not possible so move on)
(add like terms)(10y and -13y)
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