solve for the variable 2a+9=4a-19?

8 Answers

• Jacinta

  9 days ago

  Add 19 to both sides:

  2a + 28 = 4a

  Subtract 2a from both sides:

  28 = 2a

  Divide both sides by 2 …

  SOLUTION: a = 14

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• Anonymous

  9 days ago

  2a+9=4a-19

  Or,9+19=4a-2a

  Or,2a=28

  So, a=28/2=14.

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• Damon

  9 days ago

  19+9 = 4a-2a

  28 = 2a

  a= 28/2

  a= 14

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• Daniel

  9 days ago

  2a + 9 = 4a -19

  2a + 9 – 2a = 4a – 19 -2a

  9 = 2a – 19

  9+19 = 2a -19 + 19

  28 = 2a

  28 /2 = 2a/2

  14 = a

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• Anonymous

  9 days ago

  2a + 9 – 9 = 4a – 19 – 9

  2 a = 4a – 28

  2 a – 4a = 4a – 28 – 4a

  -2a = -28

  a = 28/2 = 14

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• Anonymous

  9 days ago

  2a+9=4a-19

  2a-4a=-19-9

  -2a=28

  a=28/2

  a=14

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• Anonymous

  9 days ago

  You must be retarded, if you can’t even answer such a simple question.

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• Anonymous

  9 days ago

  2a=28

  a=14

  Fow my help, please watch my video:

  http://www.youtube.com/watch?v=NH40kBg4wEY

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