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OpenStudy (rissa):
Which equation is an identity? A. 13 - (4v + 5) = -4v - 8 B. 3m - 5 = 4m + 6 - m C. 5w + 8 - w = 6w -2(w-4) D. 7y + 9 = 7y - 9
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OpenStudy (ash2326):
option c) expand it and you'll see that it's valid for all values of w
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