Question

Can someone explain step by step how to do this. Thanks

Answer 1

Hi there! The answer is k = 16

To find our answer we only need to collect the terms. In other words: we need to subtract all the values of k.

Example:
$18k - 11k = 7k$

If you don't get this, you can try to understand it by using a story: in a cage, there are 18 koalas, 11 of them leave. How many are left?

18 koalas - 11 koalas = 7 koalas
18 k - 11 k = 7 k

Now we keep doing this again and again to find our final answer:

$18k - 11k - 4k - 2k = 16 \\ 7k - 4k - 2k = 16 \\ 3k - 2k = 16 \\ 1k = 16 \\ k = 16$

~Hope this helps you!