2007-09-26 14:29:38 · 4 answers · asked by kb9kahne9 2 in Science & Mathematics ➔ Mathematics
Hey there!
The statement is true. 2 minuses always makes a +, no matter what. So a-(-b)=a+b, regardless of the values of a and b.
Hope it helps!
2007-09-26 14:32:57 · answer #1 · answered by ? 6 · 0⤊ 0⤋
Ok I see what are asking for and to answer this question
You need to remember these rules of signs
1) when you add or subtract the result its sign will be with the greatest number (for example -8 + 5= -3)
2) when you multiply and devide
(+)(+)=+ (+) / (+)=+
(-)(-) = + (-) / (-)=+
(-)(+)= - (-) / (+)= -
(+)(-)= - (+) / (-)= -
If similar signs then +
and if not similar than -
And in your problem you have multiply -(-b)
So same signs then +
So a-(-b)=a+b
I am really sorry for long answer and I hope show clearly the picture
2007-09-26 21:46:34 · answer #2 · answered by Rayan Ghazi Ahmed 4 · 0⤊ 0⤋
Yes, that is true, because two negatives equal a positive!
2007-09-26 21:36:05 · answer #3 · answered by Superandomness 3 · 0⤊ 0⤋
True.
a + -1(-b) = a + b
a + b = a + b
2007-09-26 21:33:13 · answer #4 · answered by lhvinny 7 · 0⤊ 0⤋