SOLUTION: Hosni gave the following argument that - (a + b) = -a + -b, for all integers a and b. If the argument is correct, supply the missing reasons. If it is incorrect explain why not.

Algebra ->  Expressions -> SOLUTION: Hosni gave the following argument that - (a + b) = -a + -b, for all integers a and b. If the argument is correct, supply the missing reasons. If it is incorrect explain why not.       Log On


   

Question 166557This question is from textbook
: Hosni gave the following argument that - (a + b) = -a + -b, for all integers a and b. If the argument is correct, supply the missing reasons. If it is incorrect explain why not.
- (a + b) = (-1)(a + b)
= (-1)a + (-1)b
= -a + -b This question is from textbook

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
It is correct.
- (a + b)
= -a + -b
=-a-b makes it more clear.
.
Ed