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15-09-2017
Mathematics

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solve equations and justifying -30=-6(r+7)

Respuesta :

15-09-2017

-30=-6r-42
-6r=-30+42
-6r=12
r=-2

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moondancer22 moondancer22

15-09-2017

r=-2
-30= -6r - 42
+42. +42
12=-6r
r=-2

Answer Link

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