christianespino19 christianespino19

01-03-2017
Mathematics

contestada

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

Respuesta :

Aliwohaish12 Aliwohaish12

01-03-2017

AC = DF

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

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Аноним Аноним

03-03-2017

The answer to your question is A. 2.

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