what does (-r-s)-(-s-r) equals
Simplify the following: -r-s-(-s-r)
-(-r-s) = r+s: -r-s+r+s
Grouping like terms, -r-s+r+s = (s-s)+(r-r): (s-s)+(r-r)
s-s = 0: r-r
r-r = 0: Answer: 0
