191k views
2 votes
What is the unknown factor that makes each of the following statements true?

5-х = ? (х-5)
b-k= ? (k-b)
– 3х +7 = ? (3х – 7)
A. -1/2
B. 1
C. -2
D.-1

User YjyJeff
by
5.5k points

1 Answer

5 votes

Answer:

-1 case D)

Explanation:

5-x=-(x-5) so the unknown factor is -1

b-k=-(k-b), again, -1

Similar for third case.

User Sumek
by
6.0k points