Asked by May

2(x-y)-(x+y)

I have been stuck on this problem for ages.. Please help!!
Answered by Ms. Sue
2(x-y)-(x+y)

2x - 2y - x - y = x - y




Answered by May
Oh!! Sorry; forgot to say what the objective is.. I'm supposed to simplify, but I'm not sure how to distribute the two and everything..
Answered by May
I still don't really understand.. Sorry....
Answered by mwlevin
Distribute over everything in the parentheses.

2(x - y) = 2x - 2y

-(x + y) = -x + -y = -x - y

2x - x - 2y - y = x - 3y
Answered by May
I still don't really understand.. Sorry....
Answered by May
Scratch that, I understand. Thank you!
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