beteltesgaye12owaod9 beteltesgaye12owaod9
  • 15-09-2017
  • Mathematics
contestada

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

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HD0304 HD0304
  • 15-09-2017
-30=-6r-42
-6r=-30+42
-6r=12
r=-2
Answer Link
moondancer22 moondancer22
  • 15-09-2017
r=-2
-30= -6r - 42
+42. +42
12=-6r
r=-2
Answer Link

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