Question

Combine the like terms to create an equivalent expression
-k + 3k

Answer 1

2k

Explanation:

−k+3k

=−1k+3k

=−k+k+k+k

=k+k

=2k

Answer 2

2k

Explanation:

-k +3k

Factor out a k

k(-1+3)

k(2)

2k