Quiz (1 point)
Prove that:
(a + b) + (b ⋅ (-1)) = a
The following properties may be helpful:
- b + (c + (c ⋅ (-1))) = b
- a + (b + c) = (a + b) + c
if the following are true:
- a = b
- a = c
then b = c
Please write your proof in the table below. Each row should contain one claim. The last claim is the statement that you are trying to prove.