SOLUTION: I've tried the problems like these a million times and always come out with a really off answer. (-2x) + (-x) some of the problems are more complex: (-4) + 2x + 2x

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Question 206949: I've tried the problems like these a million times and always come out with a really off answer.
(-2x) + (-x)
some of the problems are more complex:
(-4) + 2x + 2x
Found 2 solutions by stanbon, Alan3354:
Answer by stanbon(48575) About Me  (Show Source):
You can put this solution on YOUR website!
(-2x) + (-x) = -3x
----------------------------------
some of the problems are more complex:
(-4) + 2x + 2x = 0
----------------------------------
Cheers,
Stan H.

Answer by Alan3354(21612) About Me  (Show Source):
You can put this solution on YOUR website!
I've tried the problems like these a million times and always come out with a really off answer.
(-2x) + (-x) = -3x
---------
some of the problems are more complex:
(-4) + 2x + 2x = 4x - 4