Respuesta :

jding713
An equivalent expression could just be one that is simplified. So we get 9y - 2y - 10 if we distribute the 1/2, which is 7y - 10.
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Hope this helps!
==jding713==
altavistard
9y -1/2(4y+20) =>  9y - 2y - 10, or 7y - 10.

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