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09-08-2017
Mathematics

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Which equation is an identity? (Can someone explain to me how they got their answer, I don't get this.)

Which equation is an identity Can someone explain to me how they got their answer I dont get this class=

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mreijepatmat mreijepatmat

09-08-2017

5w + 8 - w = 6w - 2(w -4).

Let's reduce the equation on the left:

4w + 8; (1)

and now let's reduce the equation on the right

6w - 2w +8 = 4w +8 (2).

We notice that (1) ≈ (2), and this is the only IDENTITY

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