math

I don't know what to do.

Hosni fave the following argument that -(a+b)= -a+-b, for all intergers a and b. If the arqument is correct, suppy the missing reasons. If it is in correct explain why not.
-(a+b)=(-1)(a+b)
=(-1)a+(-1)b
=-a+-b

asked by Marcus
  1. You have correctly shown that the distributive property distributes the negative.

    posted by Marth
  2. If the argment is correct supply the missing reasons. what is the reason? I don't know.

    posted by marcus
  3. The distributive property distributes the negative to both a and b.

    posted by Marth

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