Question

Simplify each expression.
1)-6k + 7k
What is the answer to this problem

Answer 1

k

Explanation:

Forget about the k.

-6 + 7 is the same as 7 - 6

7 - 6 = 1

Add the k to the end

1k, or k.

Answer 2

k

Explanation:

To do this just imagine solving the equation without the letter k.

-6k + 7k

-6 + 7 = 1

Then put the k to the result.

1k can also be written as k.