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Given that ABC=DEF,AC=21x-19 and DF=3x+17, find the measure of AC? A.2 B.9 C.21 D.23

Given that ABC=DEF,AC=21x-19 and DF=3x+17, find the measure of AC? A.2 B.9 C.21 D.23
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Given that ABC=DEF,AC=21x-19 and DF=3x+17, find the measure of AC? A.2 B.9 C.21 D.23

User Mgol
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The answer to your question is A. 2.
User Dondondon
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AC = DF

21x - 19 = 3x + 17
21x-3x=17+19
18x=36
X=2
User Mike Deluca
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