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Fatoubah14 Fatoubah14
  • 23-03-2017
  • Mathematics
Answered

2a-1=19 solve. two step equation

Verified Answer :

cellularRespiration
cellularRespiration cellularRespiration
  • 23-03-2017

2a - 1 = 19
2a = 20
a = 10

Answer Link
texaschic101
texaschic101 texaschic101
  • 23-03-2017

2a - 1 = 19...add 1 to both sides
2a - 1 + 1 = 19 + 1....simplify
2a = 20...divide both sides by 2
(2/2)a = 20/2
1a (or just a) = 10

Answer Link

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