Question

Simplify c − d − c + d. (1 point)
6
7
5
9
1
2
1
3
c + d = c + d
5
9
4
12
5
9
1
3
c − d = c − d
5
9
4
12
5
9
1
3
c + d
5
14
2
9
c − d

Answer 1

c - d = -d + c