SOLUTION: If 2x – 9 = 4x + 7, then what does x equal?

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Question 621729: If 2x – 9 = 4x + 7, then what does x equal?
Found 2 solutions by tutor_paul, ewatrrr:
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
2x-9=4x%2B7
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First arrange all the terms with x in then on one side of the equation, and everything else on the other side:
2x-4x=7%2B9
Simplify:
-2x=16
highlight%28x=-8%29
Check your answer by substituting -8 for x in the original equation. The equality should hold true if you have the correct answer.
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Good Luck,
tutor_paul@yahoo.com

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Combining Like Terms:

2x+-+9+=+4x+%2B+7+   ||subtracting 2x and 7 from both sides of = sign

     -16 = 2x

      -8 = x