Posted by tom on Wednesday, February 20, 2013 at 4:23pm.
help me combine like terms. like how do you do it with different signs in the problem.
17 + 4w  12  w

Math  JJ, Wednesday, February 20, 2013 at 4:24pm
17 12 is a subtraction problem
4w w is a subtraction problem.

Math  tom, Wednesday, February 20, 2013 at 4:30pm
so lets say i had 4w81w
i take 4w+1w= 5w
then i have 8 left and i do
5w8

Math  Ms. Sue, Wednesday, February 20, 2013 at 4:38pm
4w81w
Why did you change the problem from 1w to + 1w?
4w  1w = 3w
4w81w = 3w  8

Math  tom, Wednesday, February 20, 2013 at 4:48pm
it was not negative that was a subtraction sign

Math  Ms. Sue, Wednesday, February 20, 2013 at 4:57pm
Then why didn't you subtract 1w from 4w?

Math  JJ, Wednesday, February 20, 2013 at 5:55pm
Negative signs and subtraction signs are really the same thing.
You can write 8  6
negative 8 subtract 6
which is the same thing as writing
8 + 6
negative eight plus negative 6.
In both cases, you get a 14 as the answer.

Math  Ken, Wednesday, February 20, 2013 at 10:51pm
17+4w12w
=1712+4ww
=5+3w
...and yes "plus a negative" is exactly the same as minus.
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