Question

What is the equivalent of 4K+2k+k

Answer 1

4k + 2k + k = 7k

Explanation:
Variables can be added if their similar.
So 4k + 2k can be simplified, but 2a + 2b cannot.
And 4k + k^2 cannot be added.
Although, variables can be combined if using multiplication, 2a • 2b = 4ab
Hope this helps!