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19-11-2020
Mathematics

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Determine which equation below has a solution of a = 2.
A. 2a + 3a – 6=-21
B. 8 = 3 + 4a-3-5a
C. -2 = 2 + 5a - 2 - 6a
D. -4a + 3a - 6 = -4

Respuesta :

19-11-2020

Answer: C. -2 = 2 + 5a - 2 - 6a
-2 - 2 + 2 = 5a - 6a
-2 = - a
2 = a

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